Unified Coverage Report :: Module Instance :: tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect_pre

Module Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect_pre

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
100.00	100.00	100.00					u_sysrst_ctrl_combo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
no children

Module Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
99.09	100.00	95.45		100.00	100.00	100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
99.09	100.00	95.45		100.00	100.00	100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
100.00	100.00	100.00					u_sysrst_ctrl_combo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
no children

Module Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect_pre

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
100.00	100.00	100.00					u_sysrst_ctrl_combo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
no children

Module Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
100.00	100.00	100.00					u_sysrst_ctrl_combo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
no children

Module Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect_pre

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
100.00	100.00	100.00					u_sysrst_ctrl_combo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
no children

Module Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect

Instance :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Instance's subtree :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
100.00	100.00	100.00		100.00	100.00	100.00

Parent :

SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT	NAME
100.00	100.00	100.00					u_sysrst_ctrl_combo

Subtrees :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
no children

Line Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect_pre

	Line No.	Total	Covered	Percent
TOTAL		43	43	100.00
CONT_ASSIGN	60	1	1	100.00
CONT_ASSIGN	79	1	1	100.00
CONT_ASSIGN	92	1	1	100.00
CONT_ASSIGN	99	1	1	100.00
CONT_ASSIGN	101	1	1	100.00
ALWAYS	104	3	3	100.00
ALWAYS	125	32	32	100.00
ALWAYS	219	3	3	100.00

59                        end else begin : gen_trigger_active_high
60         1/1              assign trigger_active = (trigger_i == 1'b1);
           Tests:       T10 T13 T33 
61                        end
62                      
63                        // In case of edge events, we also need to detect the transition.
64                        logic trigger_event;
65                        if (EventType inside {EdgeToLow, EdgeToHigh}) begin : gen_trigger_event_edge
66                          // This flop is always active, no matter the enable state.
67                          logic trigger_active_q;
68                          always_ff @(posedge clk_i or negedge rst_ni) begin : p_trigger_reg
69                            if (!rst_ni) begin
70                              trigger_active_q <= 1'b0;
71                            end else begin
72                              trigger_active_q <= trigger_active;
73                            end
74                          end
75                      
76                          assign trigger_event = trigger_active & ~trigger_active_q;
77                        // In case of level events, the event is equal to the level being active.
78                        end else begin : gen_trigger_event_level
79         1/1              assign trigger_event = trigger_active;
           Tests:       T10 T13 T33 
80                        end
81                      
82                        /////////////////
83                        // Timer Logic //
84                        /////////////////
85                      
86                        // Take the maximum width of both timer values.
87                        localparam int unsigned TimerWidth =
88                            (DetectTimerWidth > DebounceTimerWidth) ? DetectTimerWidth : DebounceTimerWidth;
89                      
90                        logic cnt_en, cnt_clr;
91                        logic [TimerWidth-1:0] cnt_d, cnt_q;
92         1/1            assign cnt_d = (cnt_clr) ? '0           :
           Tests:       T5 T17 T8 
93                                       (cnt_en)  ? cnt_q + 1'b1 :
94                                                   cnt_q;
95                      
96                      
97                        logic cnt_done, thresh_sel;
98                        logic [TimerWidth-1:0] thresh;
99         1/1            assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
           Tests:       T5 T22 T2 
100                                                      TimerWidth'(cfg_debounce_timer_i);
101        1/1            assign cnt_done = (cnt_q >= thresh);
           Tests:       T5 T22 T2 
102                     
103                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_cnt_reg
104        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
105        1/1                cnt_q <= '0;
           Tests:       T4 T5 T6 
106                         end else begin
107        1/1                cnt_q <= cnt_d;
           Tests:       T4 T5 T6 
108                         end
109                       end
110                     
111                       /////////
112                       // FSM //
113                       /////////
114                     
115                       typedef enum logic [1:0] {
116                         IdleSt,
117                         DebounceSt,
118                         DetectSt,
119                         StableSt
120                       } state_t;
121                     
122                       state_t state_d, state_q;
123                     
124                       always_comb begin : p_fsm
125        1/1              state_d = state_q;
           Tests:       T5 T17 T8 
126                     
127                         // Counter controls (clear has priority).
128        1/1              cnt_clr = 1'b0;
           Tests:       T5 T17 T8 
129        1/1              cnt_en = 1'b0;
           Tests:       T5 T17 T8 
130                     
131                         // Detected outputs
132        1/1              event_detected_o = 1'b0;
           Tests:       T5 T17 T8 
133        1/1              event_detected_pulse_o = 1'b0;
           Tests:       T5 T17 T8 
134                     
135                         // Threshold select
136                         // 0: debounce
137                         // 1: detect
138        1/1              thresh_sel = 1'b0;
           Tests:       T5 T17 T8 
139                     
140        1/1              unique case (state_q)
           Tests:       T5 T17 T8 
141                           ////////////////////////////////////////////
142                           // We are waiting for the event to occur.
143                           // This can be either a specific level or edge,
144                           // depending on the configuration.
145                           IdleSt: begin
146                             // Stay here if the detector is disabled.
147        1/1                  if (trigger_event && cfg_enable_i) begin
           Tests:       T5 T17 T8 
148        1/1                    state_d = DebounceSt;
           Tests:       T5 T17 T8 
149        1/1                    cnt_en = 1'b1;
           Tests:       T5 T17 T8 
150                             end
                        MISSING_ELSE
151                           end
152                           ////////////////////////////////////////////
153                           // If an event has occurred, we back off for
154                           // the amount of debounce cycles configured.
155                           // Once the timer has expired, we sample the
156                           // signal again and check whether it has the
157                           // correct level. If so, we move on to the
158                           // detection stage, otherwise we fall back.
159                           DebounceSt: begin
160        1/1                  cnt_en = 1'b1;
           Tests:       T5 T17 T8 
161                             // Unconditionally go back to idle if the detector is disabled.
162        1/1                  if (!cfg_enable_i) begin
           Tests:       T5 T17 T8 
163        1/1                    state_d = IdleSt;
           Tests:       T10 T90 
164        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 
165        1/1                  end else if (cnt_done) begin
           Tests:       T5 T17 T8 
166        1/1                    cnt_clr = 1'b1;
           Tests:       T5 T17 T8 
167        1/1                    if (trigger_active) begin
           Tests:       T5 T17 T8 
168        1/1                      state_d = DetectSt;
           Tests:       T5 T17 T8 
169                               end else begin
170        1/1                      state_d = IdleSt;
           Tests:       T10 T90 
171                               end
172                             end
                        MISSING_ELSE
173                           end
174                           ////////////////////////////////////////////
175                           // Once the debounce period has passed, we
176                           // check whether the signal remains stable
177                           // throughout the entire detection period.
178                           // If it is not stable at any cycle, we fall
179                           // back to idle.
180                           DetectSt: begin
181        1/1                  thresh_sel = 1'b1;
           Tests:       T5 T17 T8 
182        1/1                  cnt_en = 1'b1;
           Tests:       T5 T17 T8 
183                             // Go back to idle if either the trigger level is not active anymore, or if the
184                             // detector is disabled.
185        1/1                  if (!cfg_enable_i || !trigger_active) begin
           Tests:       T5 T17 T8 
186        1/1                    state_d = IdleSt;
           Tests:       T10 T33 T89 
187        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T33 T89 
188                             // If the trigger is active, count up.
189                             end else begin
190        1/1                    if (cnt_done) begin
           Tests:       T5 T17 T8 
191        1/1                      state_d = StableSt;
           Tests:       T5 T17 T8 
192        1/1                      cnt_clr = 1'b1;
           Tests:       T5 T17 T8 
193        1/1                      event_detected_o = 1'b1;
           Tests:       T5 T17 T8 
194        1/1                      event_detected_pulse_o = 1'b1;
           Tests:       T5 T17 T8 
195                               end
                        MISSING_ELSE
196                             end
197                           end
198                           ////////////////////////////////////////////
199                           // At this point we have detected the event
200                           // and monitor whether the signal remains stable.
201                           StableSt: begin
202                             // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                             // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                             // to go back to the idle state.
205        1/1                  if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
           Tests:       T5 T17 T8 
206        1/1                    state_d = IdleSt;
           Tests:       T10 T13 T42 
207                             // Otherwise keep the event detected output signal high.
208                             end else begin
209        1/1                    event_detected_o = 1'b1;
           Tests:       T5 T17 T8 
210                             end
211                           end
212                           ////////////////////////////////////////////
213                           // This is a full case statement
214                           default: ;
Exclude Annotation: VC_COV_UNR
215                         endcase // state_q
216                       end
217                     
218                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_fsm_reg
219        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
220        1/1                state_q <= IdleSt;
           Tests:       T4 T5 T6 
221                         end else begin
222        1/1                state_q <= state_d;
           Tests:       T4 T5 T6 

---

Cond Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect_pre

	Total	Covered	Percent
Conditions	19	19	100.00
Logical	19	19	100.00
Non-Logical	0	0
Event	0	0

 LINE       60
 EXPRESSION (trigger_i == 1'b1)
            ---------1---------

-1-	Status	Tests
0	Covered	T10,T13,T33
1	Covered	T4,T5,T6

 LINE       92
 EXPRESSION (cnt_clr ? '0 : (cnt_en ? ((cnt_q + 1'b1)) : cnt_q))
             ---1---

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T5,T17,T8

 LINE       92
 SUB-EXPRESSION (cnt_en ? ((cnt_q + 1'b1)) : cnt_q)
                 ---1--

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T5,T17,T8

 LINE       99
 EXPRESSION (thresh_sel ? (32'(cfg_detect_timer_i)) : (32'(cfg_debounce_timer_i)))
             -----1----

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T5,T17,T8

 LINE       147
 EXPRESSION (trigger_event && cfg_enable_i)
             ------1------    ------2-----

-1-	-2-	Status	Tests
0	1	Covered	T10,T13,T33
1	0	Covered	T10,T13,T42
1	1	Covered	T5,T17,T8

 LINE       185
 EXPRESSION (((!cfg_enable_i)) || ((!trigger_active)))
             --------1--------    ---------2---------

-1-	-2-	Status	Tests
0	0	Covered	T5,T17,T8
0	1	Covered	T10,T33,T89
1	0	Covered	T10,T90,T92

 LINE       205
 EXPRESSION (((!cfg_enable_i)) || (((!trigger_active)) && ((!Sticky))))
             --------1--------    ------------------2-----------------

-1-	-2-	Status	Tests
0	0	Covered	T5,T17,T8
0	1	Covered	T10,T13,T42
1	0	Covered	T108

 LINE       205
 SUB-EXPRESSION (((!trigger_active)) && ((!Sticky)))
                 ---------1---------    -----2-----

-1-	-2-	Status	Tests
0	-	Covered	T5,T17,T8
1	-	Covered	T10,T13,T42

---

FSM Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect_pre

Summary for FSM :: state_q

	Total	Covered	Percent
States	4	4	100.00	(Not included in score)
Transitions	6	6	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
DebounceSt	148	Covered	T5,T17,T8
DetectSt	168	Covered	T5,T17,T8
IdleSt	163	Covered	T4,T5,T6
StableSt	191	Covered	T5,T17,T8

transitions	Line No.	Covered	Tests
DebounceSt->DetectSt	168	Covered	T5,T17,T8
DebounceSt->IdleSt	163	Covered	T10,T90
DetectSt->IdleSt	186	Covered	T10,T33,T89
DetectSt->StableSt	191	Covered	T5,T17,T8
IdleSt->DebounceSt	148	Covered	T5,T17,T8
StableSt->IdleSt	206	Covered	T10,T13,T42

---

Branch Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect_pre

	Line No.	Total	Covered	Percent
Branches		20	20	100.00
TERNARY	92	3	3	100.00
TERNARY	99	2	2	100.00
IF	104	2	2	100.00
CASE	140	11	11	100.00
IF	219	2	2	100.00

92           assign cnt_d = (cnt_clr) ? '0           :
                                      -1-  
                                      ==>  
93                          (cnt_en)  ? cnt_q + 1'b1 :
                                      -2-  
                                      ==>  
                                      ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T5,T17,T8
0	1	Covered	T5,T17,T8
0	0	Covered	T4,T5,T6

99           assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
                                          -1-  
                                          ==>  
                                          ==>  

Branches:

-1-	Status	Tests
1	Covered	T5,T17,T8
0	Covered	T4,T5,T6

104            if (!rst_ni) begin
               -1-  
105              cnt_q <= '0;
                 ==>
106            end else begin
107              cnt_q <= cnt_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

140            unique case (state_q)
                      -1-  
141              ////////////////////////////////////////////
142              // We are waiting for the event to occur.
143              // This can be either a specific level or edge,
144              // depending on the configuration.
145              IdleSt: begin
146                // Stay here if the detector is disabled.
147                if (trigger_event && cfg_enable_i) begin
                   -2-  
148                  state_d = DebounceSt;
                     ==>
149                  cnt_en = 1'b1;
150                end
                   MISSING_ELSE
                   ==>
151              end
152              ////////////////////////////////////////////
153              // If an event has occurred, we back off for
154              // the amount of debounce cycles configured.
155              // Once the timer has expired, we sample the
156              // signal again and check whether it has the
157              // correct level. If so, we move on to the
158              // detection stage, otherwise we fall back.
159              DebounceSt: begin
160                cnt_en = 1'b1;
161                // Unconditionally go back to idle if the detector is disabled.
162                if (!cfg_enable_i) begin
                   -3-  
163                  state_d = IdleSt;
                     ==>
164                  cnt_clr = 1'b1;
165                end else if (cnt_done) begin
                            -4-  
166                  cnt_clr = 1'b1;
167                  if (trigger_active) begin
                     -5-  
168                    state_d = DetectSt;
                       ==>
169                  end else begin
170                    state_d = IdleSt;
                       ==>
171                  end
172                end
                   MISSING_ELSE
                   ==>
173              end
174              ////////////////////////////////////////////
175              // Once the debounce period has passed, we
176              // check whether the signal remains stable
177              // throughout the entire detection period.
178              // If it is not stable at any cycle, we fall
179              // back to idle.
180              DetectSt: begin
181                thresh_sel = 1'b1;
182                cnt_en = 1'b1;
183                // Go back to idle if either the trigger level is not active anymore, or if the
184                // detector is disabled.
185                if (!cfg_enable_i || !trigger_active) begin
                   -6-  
186                  state_d = IdleSt;
                     ==>
187                  cnt_clr = 1'b1;
188                // If the trigger is active, count up.
189                end else begin
190                  if (cnt_done) begin
                     -7-  
191                    state_d = StableSt;
                       ==>
192                    cnt_clr = 1'b1;
193                    event_detected_o = 1'b1;
194                    event_detected_pulse_o = 1'b1;
195                  end
                     MISSING_ELSE
                     ==>
196                end
197              end
198              ////////////////////////////////////////////
199              // At this point we have detected the event
200              // and monitor whether the signal remains stable.
201              StableSt: begin
202                // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                // to go back to the idle state.
205                if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
                   -8-  
206                  state_d = IdleSt;
                     ==>
207                // Otherwise keep the event detected output signal high.
208                end else begin
209                  event_detected_o = 1'b1;
                     ==>
210                end
211              end
212              ////////////////////////////////////////////
213              // This is a full case statement
214              default: ;
                 ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
IdleSt	1	-	-	-	-	-	-	Covered	T5,T17,T8
IdleSt	0	-	-	-	-	-	-	Covered	T10,T13,T33
DebounceSt	-	1	-	-	-	-	-	Covered	T10,T90
DebounceSt	-	0	1	1	-	-	-	Covered	T5,T17,T8
DebounceSt	-	0	1	0	-	-	-	Covered	T10,T90
DebounceSt	-	0	0	-	-	-	-	Covered	T5,T17,T8
DetectSt	-	-	-	-	1	-	-	Covered	T10,T33,T89
DetectSt	-	-	-	-	0	1	-	Covered	T5,T17,T8
DetectSt	-	-	-	-	0	0	-	Covered	T5,T17,T8
StableSt	-	-	-	-	-	-	1	Covered	T10,T13,T42
StableSt	-	-	-	-	-	-	0	Covered	T5,T17,T8
default	-	-	-	-	-	-	-	Excluded		VC_COV_UNR

219            if (!rst_ni) begin
               -1-  
220              state_q <= IdleSt;
                 ==>
221            end else begin
222              state_q <= state_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

---

Assert Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect_pre

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	16	16	100.00	16	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	16	16	100.00	16	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
CntClr_A	9770838	2774	0	0
CntIncr_A	9770838	96064	0	0
CntNoWrap_A	9770838	9326371	0	0
DetectStDropOut_A	9770838	315	0	0
DetectedOut_A	9770838	73594	0	0
DetectedPulseOut_A	9770838	900	0	0
DisabledIdleSt_A	9770838	8877744	0	0
DisabledNoDetection_A	9770838	8879400	0	0
EnterDebounceSt_A	9770838	1389	0	0
EnterDetectSt_A	9770838	1385	0	0
EnterStableSt_A	9770838	900	0	0
PulseIsPulse_A	9770838	900	0	0
StayInStableSt	9770838	72586	0	0
gen_high_event_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_high_level_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_not_sticky_sva.StableStDropOut_A	9770838	786	0	0

CntClr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	2774	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	2	0	0
T6	427	0	0	0
T8	0	2	0	0
T10	0	16	0	0
T13	0	48	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	2	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T33	0	48	0	0
T42	0	38	0	0
T58	0	2	0	0
T88	0	2	0	0
T89	0	4	0	0

CntIncr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	96064	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	21	0	0
T6	427	0	0	0
T8	0	21	0	0
T10	0	513	0	0
T13	0	888	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	21	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T33	0	1396	0	0
T42	0	1102	0	0
T58	0	21	0	0
T88	0	21	0	0
T89	0	98	0	0

CntNoWrap_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9326371	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	66	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DetectStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	315	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T33	0	24	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	2	0	0
T90	0	1	0	0
T91	0	5	0	0
T92	0	9	0	0
T94	427	0	0	0
T95	1341	0	0	0
T250	0	5	0	0
T251	0	26	0	0
T252	0	9	0	0
T253	0	9	0	0

DetectedOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	73594	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	44	0	0
T6	427	0	0	0
T8	0	80	0	0
T10	0	444	0	0
T13	0	793	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	37	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T40	0	1538	0	0
T42	0	1368	0	0
T58	0	45	0	0
T88	0	40	0	0
T90	0	295	0	0

DetectedPulseOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	900	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	1	0	0
T6	427	0	0	0
T8	0	1	0	0
T10	0	5	0	0
T13	0	24	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	1	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T40	0	9	0	0
T42	0	19	0	0
T58	0	1	0	0
T88	0	1	0	0
T90	0	5	0	0

DisabledIdleSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8877744	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	3	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DisabledNoDetection_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8879400	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	3	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

EnterDebounceSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	1389	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	1	0	0
T6	427	0	0	0
T8	0	1	0	0
T10	0	9	0	0
T13	0	24	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	1	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T33	0	24	0	0
T42	0	19	0	0
T58	0	1	0	0
T88	0	1	0	0
T89	0	2	0	0

EnterDetectSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	1385	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	1	0	0
T6	427	0	0	0
T8	0	1	0	0
T10	0	7	0	0
T13	0	24	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	1	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T33	0	24	0	0
T42	0	19	0	0
T58	0	1	0	0
T88	0	1	0	0
T89	0	2	0	0

EnterStableSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	900	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	1	0	0
T6	427	0	0	0
T8	0	1	0	0
T10	0	5	0	0
T13	0	24	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	1	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T40	0	9	0	0
T42	0	19	0	0
T58	0	1	0	0
T88	0	1	0	0
T90	0	5	0	0

PulseIsPulse_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	900	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	1	0	0
T6	427	0	0	0
T8	0	1	0	0
T10	0	5	0	0
T13	0	24	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	1	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T40	0	9	0	0
T42	0	19	0	0
T58	0	1	0	0
T88	0	1	0	0
T90	0	5	0	0

StayInStableSt

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	72586	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	42	0	0
T6	427	0	0	0
T8	0	78	0	0
T10	0	439	0	0
T13	0	767	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	35	0	0
T22	444	0	0	0
T23	491	0	0	0
T24	657	0	0	0
T40	0	1522	0	0
T42	0	1348	0	0
T58	0	43	0	0
T88	0	38	0	0
T90	0	290	0	0

gen_high_event_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_high_level_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_not_sticky_sva.StableStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	786	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	22	0	0
T40	0	2	0	0
T41	0	26	0	0
T42	0	18	0	0
T44	0	13	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T93	0	23	0	0
T94	427	0	0	0
T95	1341	0	0	0
T254	0	12	0	0
T255	0	3	0	0

Line Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect

	Line No.	Total	Covered	Percent
TOTAL		46	46	100.00
CONT_ASSIGN	60	1	1	100.00
ALWAYS	69	3	3	100.00
CONT_ASSIGN	76	1	1	100.00
CONT_ASSIGN	92	1	1	100.00
CONT_ASSIGN	99	1	1	100.00
CONT_ASSIGN	101	1	1	100.00
ALWAYS	104	3	3	100.00
ALWAYS	125	32	32	100.00
ALWAYS	219	3	3	100.00

59                        end else begin : gen_trigger_active_high
60         1/1              assign trigger_active = (trigger_i == 1'b1);
           Tests:       T5 T22 T17 
61                        end
62                      
63                        // In case of edge events, we also need to detect the transition.
64                        logic trigger_event;
65                        if (EventType inside {EdgeToLow, EdgeToHigh}) begin : gen_trigger_event_edge
66                          // This flop is always active, no matter the enable state.
67                          logic trigger_active_q;
68                          always_ff @(posedge clk_i or negedge rst_ni) begin : p_trigger_reg
69         1/1                if (!rst_ni) begin
           Tests:       T4 T5 T6 
70         1/1                  trigger_active_q <= 1'b0;
           Tests:       T4 T5 T6 
71                            end else begin
72         1/1                  trigger_active_q <= trigger_active;
           Tests:       T4 T5 T6 
73                            end
74                          end
75                      
76         1/1              assign trigger_event = trigger_active & ~trigger_active_q;
           Tests:       T4 T5 T6 
77                        // In case of level events, the event is equal to the level being active.
78                        end else begin : gen_trigger_event_level
79                          assign trigger_event = trigger_active;
80                        end
81                      
82                        /////////////////
83                        // Timer Logic //
84                        /////////////////
85                      
86                        // Take the maximum width of both timer values.
87                        localparam int unsigned TimerWidth =
88                            (DetectTimerWidth > DebounceTimerWidth) ? DetectTimerWidth : DebounceTimerWidth;
89                      
90                        logic cnt_en, cnt_clr;
91                        logic [TimerWidth-1:0] cnt_d, cnt_q;
92         1/1            assign cnt_d = (cnt_clr) ? '0           :
           Tests:       T5 T22 T17 
93                                       (cnt_en)  ? cnt_q + 1'b1 :
94                                                   cnt_q;
95                      
96                      
97                        logic cnt_done, thresh_sel;
98                        logic [TimerWidth-1:0] thresh;
99         1/1            assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
           Tests:       T5 T22 T2 
100                                                      TimerWidth'(cfg_debounce_timer_i);
101        1/1            assign cnt_done = (cnt_q >= thresh);
           Tests:       T5 T22 T2 
102                     
103                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_cnt_reg
104        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
105        1/1                cnt_q <= '0;
           Tests:       T4 T5 T6 
106                         end else begin
107        1/1                cnt_q <= cnt_d;
           Tests:       T4 T5 T6 
108                         end
109                       end
110                     
111                       /////////
112                       // FSM //
113                       /////////
114                     
115                       typedef enum logic [1:0] {
116                         IdleSt,
117                         DebounceSt,
118                         DetectSt,
119                         StableSt
120                       } state_t;
121                     
122                       state_t state_d, state_q;
123                     
124                       always_comb begin : p_fsm
125        1/1              state_d = state_q;
           Tests:       T4 T5 T6 
126                     
127                         // Counter controls (clear has priority).
128        1/1              cnt_clr = 1'b0;
           Tests:       T4 T5 T6 
129        1/1              cnt_en = 1'b0;
           Tests:       T4 T5 T6 
130                     
131                         // Detected outputs
132        1/1              event_detected_o = 1'b0;
           Tests:       T4 T5 T6 
133        1/1              event_detected_pulse_o = 1'b0;
           Tests:       T4 T5 T6 
134                     
135                         // Threshold select
136                         // 0: debounce
137                         // 1: detect
138        1/1              thresh_sel = 1'b0;
           Tests:       T4 T5 T6 
139                     
140        1/1              unique case (state_q)
           Tests:       T4 T5 T6 
141                           ////////////////////////////////////////////
142                           // We are waiting for the event to occur.
143                           // This can be either a specific level or edge,
144                           // depending on the configuration.
145                           IdleSt: begin
146                             // Stay here if the detector is disabled.
147        1/1                  if (trigger_event && cfg_enable_i) begin
           Tests:       T4 T5 T6 
148        1/1                    state_d = DebounceSt;
           Tests:       T5 T22 T17 
149        1/1                    cnt_en = 1'b1;
           Tests:       T5 T22 T17 
150                             end
                        MISSING_ELSE
151                           end
152                           ////////////////////////////////////////////
153                           // If an event has occurred, we back off for
154                           // the amount of debounce cycles configured.
155                           // Once the timer has expired, we sample the
156                           // signal again and check whether it has the
157                           // correct level. If so, we move on to the
158                           // detection stage, otherwise we fall back.
159                           DebounceSt: begin
160        1/1                  cnt_en = 1'b1;
           Tests:       T5 T22 T17 
161                             // Unconditionally go back to idle if the detector is disabled.
162        1/1                  if (!cfg_enable_i) begin
           Tests:       T5 T22 T17 
163        1/1                    state_d = IdleSt;
           Tests:       T10 T90 
164        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 
165        1/1                  end else if (cnt_done) begin
           Tests:       T5 T22 T17 
166        1/1                    cnt_clr = 1'b1;
           Tests:       T5 T22 T17 
167        1/1                    if (trigger_active) begin
           Tests:       T5 T22 T17 
168        1/1                      state_d = DetectSt;
           Tests:       T8 T9 T10 
169                               end else begin
170        1/1                      state_d = IdleSt;
           Tests:       T5 T22 T17 
171                               end
172                             end
                        MISSING_ELSE
173                           end
174                           ////////////////////////////////////////////
175                           // Once the debounce period has passed, we
176                           // check whether the signal remains stable
177                           // throughout the entire detection period.
178                           // If it is not stable at any cycle, we fall
179                           // back to idle.
180                           DetectSt: begin
181        1/1                  thresh_sel = 1'b1;
           Tests:       T8 T9 T10 
182        1/1                  cnt_en = 1'b1;
           Tests:       T8 T9 T10 
183                             // Go back to idle if either the trigger level is not active anymore, or if the
184                             // detector is disabled.
185        1/1                  if (!cfg_enable_i || !trigger_active) begin
           Tests:       T8 T9 T10 
186        1/1                    state_d = IdleSt;
           Tests:       T10 T34 T90 
187        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T34 T90 
188                             // If the trigger is active, count up.
189                             end else begin
190        1/1                    if (cnt_done) begin
           Tests:       T8 T9 T10 
191        1/1                      state_d = StableSt;
           Tests:       T8 T9 T10 
192        1/1                      cnt_clr = 1'b1;
           Tests:       T8 T9 T10 
193        1/1                      event_detected_o = 1'b1;
           Tests:       T8 T9 T10 
194        1/1                      event_detected_pulse_o = 1'b1;
           Tests:       T8 T9 T10 
195                               end
                        MISSING_ELSE
196                             end
197                           end
198                           ////////////////////////////////////////////
199                           // At this point we have detected the event
200                           // and monitor whether the signal remains stable.
201                           StableSt: begin
202                             // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                             // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                             // to go back to the idle state.
205        1/1                  if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
           Tests:       T8 T9 T10 
206        1/1                    state_d = IdleSt;
           Tests:       T8 T9 T10 
207                             // Otherwise keep the event detected output signal high.
208                             end else begin
209        1/1                    event_detected_o = 1'b1;
           Tests:       T8 T9 T10 
210                             end
211                           end
212                           ////////////////////////////////////////////
213                           // This is a full case statement
214                           default: ;
Exclude Annotation: VC_COV_UNR
215                         endcase // state_q
216                       end
217                     
218                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_fsm_reg
219        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
220        1/1                state_q <= IdleSt;
           Tests:       T4 T5 T6 
221                         end else begin
222        1/1                state_q <= state_d;
           Tests:       T4 T5 T6 

---

Cond Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect

	Total	Covered	Percent
Conditions	22	21	95.45
Logical	22	21	95.45
Non-Logical	0	0
Event	0	0

 LINE       60
 EXPRESSION (trigger_i == 1'b1)
            ---------1---------

-1-	Status	Tests
0	Covered	T5,T22,T17
1	Covered	T4,T5,T6

 LINE       76
 EXPRESSION (trigger_active & ((~gen_trigger_event_edge.trigger_active_q)))
             -------1------   ----------------------2---------------------

-1-	-2-	Status	Tests
0	1	Covered	T5,T22,T17
1	0	Covered	T4,T5,T6
1	1	Covered	T4,T5,T6

 LINE       92
 EXPRESSION (cnt_clr ? '0 : (cnt_en ? ((cnt_q + 1'b1)) : cnt_q))
             ---1---

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T5,T22,T17

 LINE       92
 SUB-EXPRESSION (cnt_en ? ((cnt_q + 1'b1)) : cnt_q)
                 ---1--

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T5,T22,T17

 LINE       99
 EXPRESSION (thresh_sel ? (32'(cfg_detect_timer_i)) : (32'(cfg_debounce_timer_i)))
             -----1----

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T8,T9,T10

 LINE       147
 EXPRESSION (trigger_event && cfg_enable_i)
             ------1------    ------2-----

-1-	-2-	Status	Tests
0	1	Covered	T5,T22,T17
1	0	Covered	T20,T104,T71
1	1	Covered	T5,T22,T17

 LINE       185
 EXPRESSION (((!cfg_enable_i)) || ((!trigger_active)))
             --------1--------    ---------2---------

-1-	-2-	Status	Tests
0	0	Covered	T8,T9,T10
0	1	Covered	T34,T97,T113
1	0	Covered	T10,T90

 LINE       205
 EXPRESSION (((!cfg_enable_i)) || (((!trigger_active)) && ((!Sticky))))
             --------1--------    ------------------2-----------------

-1-	-2-	Status	Tests
0	0	Covered	T8,T9,T10
0	1	Covered	T8,T9,T13
1	0	Not Covered

 LINE       205
 SUB-EXPRESSION (((!trigger_active)) && ((!Sticky)))
                 ---------1---------    -----2-----

-1-	-2-	Status	Tests
0	-	Covered	T8,T9,T10
1	-	Covered	T8,T9,T10

---

FSM Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect

Summary for FSM :: state_q

	Total	Covered	Percent
States	4	4	100.00	(Not included in score)
Transitions	6	6	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
DebounceSt	148	Covered	T5,T22,T17
DetectSt	168	Covered	T8,T9,T10
IdleSt	163	Covered	T4,T5,T6
StableSt	191	Covered	T8,T9,T10

transitions	Line No.	Covered	Tests
DebounceSt->DetectSt	168	Covered	T8,T9,T10
DebounceSt->IdleSt	163	Covered	T5,T22,T17
DetectSt->IdleSt	186	Covered	T10,T34,T90
DetectSt->StableSt	191	Covered	T8,T9,T10
IdleSt->DebounceSt	148	Covered	T5,T22,T17
StableSt->IdleSt	206	Covered	T8,T9,T10

---

Branch Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect

	Line No.	Total	Covered	Percent
Branches		22	22	100.00
TERNARY	92	3	3	100.00
TERNARY	99	2	2	100.00
IF	104	2	2	100.00
CASE	140	11	11	100.00
IF	219	2	2	100.00
IF	69	2	2	100.00

92           assign cnt_d = (cnt_clr) ? '0           :
                                      -1-  
                                      ==>  
93                          (cnt_en)  ? cnt_q + 1'b1 :
                                      -2-  
                                      ==>  
                                      ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T5,T22,T17
0	1	Covered	T5,T22,T17
0	0	Covered	T4,T5,T6

99           assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
                                          -1-  
                                          ==>  
                                          ==>  

Branches:

-1-	Status	Tests
1	Covered	T8,T9,T10
0	Covered	T4,T5,T6

104            if (!rst_ni) begin
               -1-  
105              cnt_q <= '0;
                 ==>
106            end else begin
107              cnt_q <= cnt_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

140            unique case (state_q)
                      -1-  
141              ////////////////////////////////////////////
142              // We are waiting for the event to occur.
143              // This can be either a specific level or edge,
144              // depending on the configuration.
145              IdleSt: begin
146                // Stay here if the detector is disabled.
147                if (trigger_event && cfg_enable_i) begin
                   -2-  
148                  state_d = DebounceSt;
                     ==>
149                  cnt_en = 1'b1;
150                end
                   MISSING_ELSE
                   ==>
151              end
152              ////////////////////////////////////////////
153              // If an event has occurred, we back off for
154              // the amount of debounce cycles configured.
155              // Once the timer has expired, we sample the
156              // signal again and check whether it has the
157              // correct level. If so, we move on to the
158              // detection stage, otherwise we fall back.
159              DebounceSt: begin
160                cnt_en = 1'b1;
161                // Unconditionally go back to idle if the detector is disabled.
162                if (!cfg_enable_i) begin
                   -3-  
163                  state_d = IdleSt;
                     ==>
164                  cnt_clr = 1'b1;
165                end else if (cnt_done) begin
                            -4-  
166                  cnt_clr = 1'b1;
167                  if (trigger_active) begin
                     -5-  
168                    state_d = DetectSt;
                       ==>
169                  end else begin
170                    state_d = IdleSt;
                       ==>
171                  end
172                end
                   MISSING_ELSE
                   ==>
173              end
174              ////////////////////////////////////////////
175              // Once the debounce period has passed, we
176              // check whether the signal remains stable
177              // throughout the entire detection period.
178              // If it is not stable at any cycle, we fall
179              // back to idle.
180              DetectSt: begin
181                thresh_sel = 1'b1;
182                cnt_en = 1'b1;
183                // Go back to idle if either the trigger level is not active anymore, or if the
184                // detector is disabled.
185                if (!cfg_enable_i || !trigger_active) begin
                   -6-  
186                  state_d = IdleSt;
                     ==>
187                  cnt_clr = 1'b1;
188                // If the trigger is active, count up.
189                end else begin
190                  if (cnt_done) begin
                     -7-  
191                    state_d = StableSt;
                       ==>
192                    cnt_clr = 1'b1;
193                    event_detected_o = 1'b1;
194                    event_detected_pulse_o = 1'b1;
195                  end
                     MISSING_ELSE
                     ==>
196                end
197              end
198              ////////////////////////////////////////////
199              // At this point we have detected the event
200              // and monitor whether the signal remains stable.
201              StableSt: begin
202                // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                // to go back to the idle state.
205                if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
                   -8-  
206                  state_d = IdleSt;
                     ==>
207                // Otherwise keep the event detected output signal high.
208                end else begin
209                  event_detected_o = 1'b1;
                     ==>
210                end
211              end
212              ////////////////////////////////////////////
213              // This is a full case statement
214              default: ;
                 ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
IdleSt	1	-	-	-	-	-	-	Covered	T5,T22,T17
IdleSt	0	-	-	-	-	-	-	Covered	T4,T5,T6
DebounceSt	-	1	-	-	-	-	-	Covered	T10,T90
DebounceSt	-	0	1	1	-	-	-	Covered	T8,T9,T10
DebounceSt	-	0	1	0	-	-	-	Covered	T5,T22,T17
DebounceSt	-	0	0	-	-	-	-	Covered	T5,T22,T17
DetectSt	-	-	-	-	1	-	-	Covered	T10,T34,T90
DetectSt	-	-	-	-	0	1	-	Covered	T8,T9,T10
DetectSt	-	-	-	-	0	0	-	Covered	T8,T9,T10
StableSt	-	-	-	-	-	-	1	Covered	T8,T9,T10
StableSt	-	-	-	-	-	-	0	Covered	T8,T9,T10
default	-	-	-	-	-	-	-	Excluded		VC_COV_UNR

219            if (!rst_ni) begin
               -1-  
220              state_q <= IdleSt;
                 ==>
221            end else begin
222              state_q <= state_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

69               if (!rst_ni) begin
                 -1-  
70                 trigger_active_q <= 1'b0;
                   ==>
71               end else begin
72                 trigger_active_q <= trigger_active;
                   ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

---

Assert Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[0].u_sysrst_ctrl_detect

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	15	15	100.00	15	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	15	15	100.00	15	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
CntClr_A	9770838	830	0	0
CntIncr_A	9770838	46983	0	0
CntNoWrap_A	9770838	9328315	0	0
DetectStDropOut_A	9770838	58	0	0
DetectedOut_A	9770838	14296	0	0
DetectedPulseOut_A	9770838	325	0	0
DisabledIdleSt_A	9770838	8984393	0	0
DisabledNoDetection_A	9770838	8985587	0	0
EnterDebounceSt_A	9770838	444	0	0
EnterDetectSt_A	9770838	387	0	0
EnterStableSt_A	9770838	325	0	0
PulseIsPulse_A	9770838	325	0	0
StayInStableSt	9770838	13946	0	0
gen_high_level_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_not_sticky_sva.StableStDropOut_A	9770838	297	0	0

CntClr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	830	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	1	0	0
T6	427	0	0	0
T8	0	2	0	0
T9	0	2	0	0
T10	0	8	0	0
T13	0	4	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	1	0	0
T22	444	1	0	0
T23	491	0	0	0
T24	657	0	0	0
T56	0	1	0	0
T57	0	1	0	0
T58	0	1	0	0

CntIncr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	46983	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	20	0	0
T6	427	0	0	0
T8	0	25	0	0
T9	0	25	0	0
T10	0	268	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	20	0	0
T20	0	4	0	0
T22	444	20	0	0
T23	491	0	0	0
T24	657	0	0	0
T56	0	20	0	0
T57	0	20	0	0
T58	0	20	0	0

CntNoWrap_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9328315	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	67	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	42	0	0
T23	491	90	0	0
T24	657	256	0	0

DetectStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	58	0	0
T34	17086	10	0	0
T45	1047	0	0	0
T47	570	0	0	0
T80	497	0	0	0
T97	0	5	0	0
T113	0	12	0	0
T114	0	3	0	0
T115	0	13	0	0
T116	0	1	0	0
T119	0	2	0	0
T121	0	2	0	0
T122	0	7	0	0
T124	0	3	0	0
T125	504	0	0	0
T126	527	0	0	0
T127	4410	0	0	0
T128	437	0	0	0
T129	518	0	0	0
T130	407	0	0	0

DetectedOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	14296	0	0
T8	506	4	0	0
T9	485	3	0	0
T10	8125	105	0	0
T11	783	0	0	0
T13	0	105	0	0
T21	0	39	0	0
T42	0	100	0	0
T58	470	0	0	0
T61	0	3	0	0
T65	522	0	0	0
T77	493	0	0	0
T86	532	0	0	0
T96	0	525	0	0
T140	0	3	0	0
T141	0	3	0	0
T143	434	0	0	0
T144	422	0	0	0

DetectedPulseOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	325	0	0
T8	506	1	0	0
T9	485	1	0	0
T10	8125	1	0	0
T11	783	0	0	0
T13	0	2	0	0
T21	0	5	0	0
T42	0	2	0	0
T58	470	0	0	0
T61	0	1	0	0
T65	522	0	0	0
T77	493	0	0	0
T86	532	0	0	0
T96	0	6	0	0
T140	0	1	0	0
T141	0	1	0	0
T143	434	0	0	0
T144	422	0	0	0

DisabledIdleSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8984393	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	25	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	4	0	0
T23	491	90	0	0
T24	657	256	0	0

DisabledNoDetection_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8985587	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	25	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	4	0	0
T23	491	91	0	0
T24	657	257	0	0

EnterDebounceSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	444	0	0
T1	1054	0	0	0
T2	644	0	0	0
T5	469	1	0	0
T6	427	0	0	0
T8	0	1	0	0
T9	0	1	0	0
T10	0	5	0	0
T14	522	0	0	0
T15	502	0	0	0
T16	424	0	0	0
T17	0	1	0	0
T20	0	1	0	0
T22	444	1	0	0
T23	491	0	0	0
T24	657	0	0	0
T56	0	1	0	0
T57	0	1	0	0
T58	0	1	0	0

EnterDetectSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	387	0	0
T8	506	1	0	0
T9	485	1	0	0
T10	8125	3	0	0
T11	783	0	0	0
T13	0	2	0	0
T21	0	5	0	0
T34	0	10	0	0
T42	0	2	0	0
T58	470	0	0	0
T61	0	1	0	0
T65	522	0	0	0
T77	493	0	0	0
T86	532	0	0	0
T96	0	6	0	0
T140	0	1	0	0
T143	434	0	0	0
T144	422	0	0	0

EnterStableSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	325	0	0
T8	506	1	0	0
T9	485	1	0	0
T10	8125	1	0	0
T11	783	0	0	0
T13	0	2	0	0
T21	0	5	0	0
T42	0	2	0	0
T58	470	0	0	0
T61	0	1	0	0
T65	522	0	0	0
T77	493	0	0	0
T86	532	0	0	0
T96	0	6	0	0
T140	0	1	0	0
T141	0	1	0	0
T143	434	0	0	0
T144	422	0	0	0

PulseIsPulse_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	325	0	0
T8	506	1	0	0
T9	485	1	0	0
T10	8125	1	0	0
T11	783	0	0	0
T13	0	2	0	0
T21	0	5	0	0
T42	0	2	0	0
T58	470	0	0	0
T61	0	1	0	0
T65	522	0	0	0
T77	493	0	0	0
T86	532	0	0	0
T96	0	6	0	0
T140	0	1	0	0
T141	0	1	0	0
T143	434	0	0	0
T144	422	0	0	0

StayInStableSt

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	13946	0	0
T8	506	3	0	0
T9	485	2	0	0
T10	8125	104	0	0
T11	783	0	0	0
T13	0	103	0	0
T21	0	34	0	0
T42	0	98	0	0
T58	470	0	0	0
T61	0	2	0	0
T65	522	0	0	0
T77	493	0	0	0
T86	532	0	0	0
T96	0	519	0	0
T140	0	2	0	0
T141	0	2	0	0
T143	434	0	0	0
T144	422	0	0	0

gen_high_level_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_not_sticky_sva.StableStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	297	0	0
T8	506	1	0	0
T9	485	1	0	0
T10	8125	0	0	0
T11	783	0	0	0
T13	0	2	0	0
T21	0	5	0	0
T42	0	2	0	0
T58	470	0	0	0
T61	0	1	0	0
T65	522	0	0	0
T77	493	0	0	0
T86	532	0	0	0
T96	0	6	0	0
T140	0	1	0	0
T141	0	1	0	0
T143	434	0	0	0
T144	422	0	0	0
T145	0	2	0	0

Line Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect_pre

	Line No.	Total	Covered	Percent
TOTAL		43	43	100.00
CONT_ASSIGN	60	1	1	100.00
CONT_ASSIGN	79	1	1	100.00
CONT_ASSIGN	92	1	1	100.00
CONT_ASSIGN	99	1	1	100.00
CONT_ASSIGN	101	1	1	100.00
ALWAYS	104	3	3	100.00
ALWAYS	125	32	32	100.00
ALWAYS	219	3	3	100.00

59                        end else begin : gen_trigger_active_high
60         1/1              assign trigger_active = (trigger_i == 1'b1);
           Tests:       T10 T13 T33 
61                        end
62                      
63                        // In case of edge events, we also need to detect the transition.
64                        logic trigger_event;
65                        if (EventType inside {EdgeToLow, EdgeToHigh}) begin : gen_trigger_event_edge
66                          // This flop is always active, no matter the enable state.
67                          logic trigger_active_q;
68                          always_ff @(posedge clk_i or negedge rst_ni) begin : p_trigger_reg
69                            if (!rst_ni) begin
70                              trigger_active_q <= 1'b0;
71                            end else begin
72                              trigger_active_q <= trigger_active;
73                            end
74                          end
75                      
76                          assign trigger_event = trigger_active & ~trigger_active_q;
77                        // In case of level events, the event is equal to the level being active.
78                        end else begin : gen_trigger_event_level
79         1/1              assign trigger_event = trigger_active;
           Tests:       T10 T13 T33 
80                        end
81                      
82                        /////////////////
83                        // Timer Logic //
84                        /////////////////
85                      
86                        // Take the maximum width of both timer values.
87                        localparam int unsigned TimerWidth =
88                            (DetectTimerWidth > DebounceTimerWidth) ? DetectTimerWidth : DebounceTimerWidth;
89                      
90                        logic cnt_en, cnt_clr;
91                        logic [TimerWidth-1:0] cnt_d, cnt_q;
92         1/1            assign cnt_d = (cnt_clr) ? '0           :
           Tests:       T10 T13 T33 
93                                       (cnt_en)  ? cnt_q + 1'b1 :
94                                                   cnt_q;
95                      
96                      
97                        logic cnt_done, thresh_sel;
98                        logic [TimerWidth-1:0] thresh;
99         1/1            assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
           Tests:       T5 T22 T2 
100                                                      TimerWidth'(cfg_debounce_timer_i);
101        1/1            assign cnt_done = (cnt_q >= thresh);
           Tests:       T5 T22 T2 
102                     
103                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_cnt_reg
104        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
105        1/1                cnt_q <= '0;
           Tests:       T4 T5 T6 
106                         end else begin
107        1/1                cnt_q <= cnt_d;
           Tests:       T4 T5 T6 
108                         end
109                       end
110                     
111                       /////////
112                       // FSM //
113                       /////////
114                     
115                       typedef enum logic [1:0] {
116                         IdleSt,
117                         DebounceSt,
118                         DetectSt,
119                         StableSt
120                       } state_t;
121                     
122                       state_t state_d, state_q;
123                     
124                       always_comb begin : p_fsm
125        1/1              state_d = state_q;
           Tests:       T10 T13 T33 
126                     
127                         // Counter controls (clear has priority).
128        1/1              cnt_clr = 1'b0;
           Tests:       T10 T13 T33 
129        1/1              cnt_en = 1'b0;
           Tests:       T10 T13 T33 
130                     
131                         // Detected outputs
132        1/1              event_detected_o = 1'b0;
           Tests:       T10 T13 T33 
133        1/1              event_detected_pulse_o = 1'b0;
           Tests:       T10 T13 T33 
134                     
135                         // Threshold select
136                         // 0: debounce
137                         // 1: detect
138        1/1              thresh_sel = 1'b0;
           Tests:       T10 T13 T33 
139                     
140        1/1              unique case (state_q)
           Tests:       T10 T13 T33 
141                           ////////////////////////////////////////////
142                           // We are waiting for the event to occur.
143                           // This can be either a specific level or edge,
144                           // depending on the configuration.
145                           IdleSt: begin
146                             // Stay here if the detector is disabled.
147        1/1                  if (trigger_event && cfg_enable_i) begin
           Tests:       T10 T13 T33 
148        1/1                    state_d = DebounceSt;
           Tests:       T10 T13 T33 
149        1/1                    cnt_en = 1'b1;
           Tests:       T10 T13 T33 
150                             end
                        MISSING_ELSE
151                           end
152                           ////////////////////////////////////////////
153                           // If an event has occurred, we back off for
154                           // the amount of debounce cycles configured.
155                           // Once the timer has expired, we sample the
156                           // signal again and check whether it has the
157                           // correct level. If so, we move on to the
158                           // detection stage, otherwise we fall back.
159                           DebounceSt: begin
160        1/1                  cnt_en = 1'b1;
           Tests:       T10 T13 T33 
161                             // Unconditionally go back to idle if the detector is disabled.
162        1/1                  if (!cfg_enable_i) begin
           Tests:       T10 T13 T33 
163        1/1                    state_d = IdleSt;
           Tests:       T10 T90 
164        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 
165        1/1                  end else if (cnt_done) begin
           Tests:       T10 T13 T33 
166        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T13 T33 
167        1/1                    if (trigger_active) begin
           Tests:       T10 T13 T33 
168        1/1                      state_d = DetectSt;
           Tests:       T10 T13 T33 
169                               end else begin
170        1/1                      state_d = IdleSt;
           Tests:       T10 T90 
171                               end
172                             end
                        MISSING_ELSE
173                           end
174                           ////////////////////////////////////////////
175                           // Once the debounce period has passed, we
176                           // check whether the signal remains stable
177                           // throughout the entire detection period.
178                           // If it is not stable at any cycle, we fall
179                           // back to idle.
180                           DetectSt: begin
181        1/1                  thresh_sel = 1'b1;
           Tests:       T10 T13 T33 
182        1/1                  cnt_en = 1'b1;
           Tests:       T10 T13 T33 
183                             // Go back to idle if either the trigger level is not active anymore, or if the
184                             // detector is disabled.
185        1/1                  if (!cfg_enable_i || !trigger_active) begin
           Tests:       T10 T13 T33 
186        1/1                    state_d = IdleSt;
           Tests:       T10 T33 T89 
187        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T33 T89 
188                             // If the trigger is active, count up.
189                             end else begin
190        1/1                    if (cnt_done) begin
           Tests:       T10 T13 T33 
191        1/1                      state_d = StableSt;
           Tests:       T10 T13 T42 
192        1/1                      cnt_clr = 1'b1;
           Tests:       T10 T13 T42 
193        1/1                      event_detected_o = 1'b1;
           Tests:       T10 T13 T42 
194        1/1                      event_detected_pulse_o = 1'b1;
           Tests:       T10 T13 T42 
195                               end
                        MISSING_ELSE
196                             end
197                           end
198                           ////////////////////////////////////////////
199                           // At this point we have detected the event
200                           // and monitor whether the signal remains stable.
201                           StableSt: begin
202                             // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                             // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                             // to go back to the idle state.
205        1/1                  if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
           Tests:       T10 T13 T42 
206        1/1                    state_d = IdleSt;
           Tests:       T10 T13 T42 
207                             // Otherwise keep the event detected output signal high.
208                             end else begin
209        1/1                    event_detected_o = 1'b1;
           Tests:       T10 T13 T42 
210                             end
211                           end
212                           ////////////////////////////////////////////
213                           // This is a full case statement
214                           default: ;
Exclude Annotation: VC_COV_UNR
215                         endcase // state_q
216                       end
217                     
218                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_fsm_reg
219        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
220        1/1                state_q <= IdleSt;
           Tests:       T4 T5 T6 
221                         end else begin
222        1/1                state_q <= state_d;
           Tests:       T4 T5 T6 

---

Cond Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect_pre

	Total	Covered	Percent
Conditions	19	19	100.00
Logical	19	19	100.00
Non-Logical	0	0
Event	0	0

 LINE       60
 EXPRESSION (trigger_i == 1'b1)
            ---------1---------

-1-	Status	Tests
0	Covered	T10,T13,T33
1	Covered	T4,T5,T6

 LINE       92
 EXPRESSION (cnt_clr ? '0 : (cnt_en ? ((cnt_q + 1'b1)) : cnt_q))
             ---1---

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T33

 LINE       92
 SUB-EXPRESSION (cnt_en ? ((cnt_q + 1'b1)) : cnt_q)
                 ---1--

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T33

 LINE       99
 EXPRESSION (thresh_sel ? (32'(cfg_detect_timer_i)) : (32'(cfg_debounce_timer_i)))
             -----1----

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T33

 LINE       147
 EXPRESSION (trigger_event && cfg_enable_i)
             ------1------    ------2-----

-1-	-2-	Status	Tests
0	1	Covered	T10,T13,T33
1	0	Covered	T10,T13,T42
1	1	Covered	T10,T13,T33

 LINE       185
 EXPRESSION (((!cfg_enable_i)) || ((!trigger_active)))
             --------1--------    ---------2---------

-1-	-2-	Status	Tests
0	0	Covered	T10,T13,T33
0	1	Covered	T10,T33,T89
1	0	Covered	T10,T90,T254

 LINE       205
 EXPRESSION (((!cfg_enable_i)) || (((!trigger_active)) && ((!Sticky))))
             --------1--------    ------------------2-----------------

-1-	-2-	Status	Tests
0	0	Covered	T10,T13,T42
0	1	Covered	T10,T13,T42
1	0	Covered	T10,T107,T256

 LINE       205
 SUB-EXPRESSION (((!trigger_active)) && ((!Sticky)))
                 ---------1---------    -----2-----

-1-	-2-	Status	Tests
0	-	Covered	T10,T13,T42
1	-	Covered	T10,T13,T42

---

FSM Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect_pre

Summary for FSM :: state_q

	Total	Covered	Percent
States	4	4	100.00	(Not included in score)
Transitions	6	6	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
DebounceSt	148	Covered	T10,T13,T33
DetectSt	168	Covered	T10,T13,T33
IdleSt	163	Covered	T4,T5,T6
StableSt	191	Covered	T10,T13,T42

transitions	Line No.	Covered	Tests
DebounceSt->DetectSt	168	Covered	T10,T13,T33
DebounceSt->IdleSt	163	Covered	T10,T90
DetectSt->IdleSt	186	Covered	T10,T33,T89
DetectSt->StableSt	191	Covered	T10,T13,T42
IdleSt->DebounceSt	148	Covered	T10,T13,T33
StableSt->IdleSt	206	Covered	T10,T13,T42

---

Branch Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect_pre

	Line No.	Total	Covered	Percent
Branches		20	20	100.00
TERNARY	92	3	3	100.00
TERNARY	99	2	2	100.00
IF	104	2	2	100.00
CASE	140	11	11	100.00
IF	219	2	2	100.00

92           assign cnt_d = (cnt_clr) ? '0           :
                                      -1-  
                                      ==>  
93                          (cnt_en)  ? cnt_q + 1'b1 :
                                      -2-  
                                      ==>  
                                      ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T10,T13,T33
0	1	Covered	T10,T13,T33
0	0	Covered	T4,T5,T6

99           assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
                                          -1-  
                                          ==>  
                                          ==>  

Branches:

-1-	Status	Tests
1	Covered	T10,T13,T33
0	Covered	T4,T5,T6

104            if (!rst_ni) begin
               -1-  
105              cnt_q <= '0;
                 ==>
106            end else begin
107              cnt_q <= cnt_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

140            unique case (state_q)
                      -1-  
141              ////////////////////////////////////////////
142              // We are waiting for the event to occur.
143              // This can be either a specific level or edge,
144              // depending on the configuration.
145              IdleSt: begin
146                // Stay here if the detector is disabled.
147                if (trigger_event && cfg_enable_i) begin
                   -2-  
148                  state_d = DebounceSt;
                     ==>
149                  cnt_en = 1'b1;
150                end
                   MISSING_ELSE
                   ==>
151              end
152              ////////////////////////////////////////////
153              // If an event has occurred, we back off for
154              // the amount of debounce cycles configured.
155              // Once the timer has expired, we sample the
156              // signal again and check whether it has the
157              // correct level. If so, we move on to the
158              // detection stage, otherwise we fall back.
159              DebounceSt: begin
160                cnt_en = 1'b1;
161                // Unconditionally go back to idle if the detector is disabled.
162                if (!cfg_enable_i) begin
                   -3-  
163                  state_d = IdleSt;
                     ==>
164                  cnt_clr = 1'b1;
165                end else if (cnt_done) begin
                            -4-  
166                  cnt_clr = 1'b1;
167                  if (trigger_active) begin
                     -5-  
168                    state_d = DetectSt;
                       ==>
169                  end else begin
170                    state_d = IdleSt;
                       ==>
171                  end
172                end
                   MISSING_ELSE
                   ==>
173              end
174              ////////////////////////////////////////////
175              // Once the debounce period has passed, we
176              // check whether the signal remains stable
177              // throughout the entire detection period.
178              // If it is not stable at any cycle, we fall
179              // back to idle.
180              DetectSt: begin
181                thresh_sel = 1'b1;
182                cnt_en = 1'b1;
183                // Go back to idle if either the trigger level is not active anymore, or if the
184                // detector is disabled.
185                if (!cfg_enable_i || !trigger_active) begin
                   -6-  
186                  state_d = IdleSt;
                     ==>
187                  cnt_clr = 1'b1;
188                // If the trigger is active, count up.
189                end else begin
190                  if (cnt_done) begin
                     -7-  
191                    state_d = StableSt;
                       ==>
192                    cnt_clr = 1'b1;
193                    event_detected_o = 1'b1;
194                    event_detected_pulse_o = 1'b1;
195                  end
                     MISSING_ELSE
                     ==>
196                end
197              end
198              ////////////////////////////////////////////
199              // At this point we have detected the event
200              // and monitor whether the signal remains stable.
201              StableSt: begin
202                // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                // to go back to the idle state.
205                if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
                   -8-  
206                  state_d = IdleSt;
                     ==>
207                // Otherwise keep the event detected output signal high.
208                end else begin
209                  event_detected_o = 1'b1;
                     ==>
210                end
211              end
212              ////////////////////////////////////////////
213              // This is a full case statement
214              default: ;
                 ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
IdleSt	1	-	-	-	-	-	-	Covered	T10,T13,T33
IdleSt	0	-	-	-	-	-	-	Covered	T10,T13,T33
DebounceSt	-	1	-	-	-	-	-	Covered	T10,T90
DebounceSt	-	0	1	1	-	-	-	Covered	T10,T13,T33
DebounceSt	-	0	1	0	-	-	-	Covered	T10,T90
DebounceSt	-	0	0	-	-	-	-	Covered	T10,T13,T33
DetectSt	-	-	-	-	1	-	-	Covered	T10,T33,T89
DetectSt	-	-	-	-	0	1	-	Covered	T10,T13,T42
DetectSt	-	-	-	-	0	0	-	Covered	T10,T13,T33
StableSt	-	-	-	-	-	-	1	Covered	T10,T13,T42
StableSt	-	-	-	-	-	-	0	Covered	T10,T13,T42
default	-	-	-	-	-	-	-	Excluded		VC_COV_UNR

219            if (!rst_ni) begin
               -1-  
220              state_q <= IdleSt;
                 ==>
221            end else begin
222              state_q <= state_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

---

Assert Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect_pre

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	16	16	100.00	16	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	16	16	100.00	16	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
CntClr_A	9770838	2914	0	0
CntIncr_A	9770838	107242	0	0
CntNoWrap_A	9770838	9326231	0	0
DetectStDropOut_A	9770838	369	0	0
DetectedOut_A	9770838	69002	0	0
DetectedPulseOut_A	9770838	871	0	0
DisabledIdleSt_A	9770838	8881968	0	0
DisabledNoDetection_A	9770838	8883636	0	0
EnterDebounceSt_A	9770838	1459	0	0
EnterDetectSt_A	9770838	1455	0	0
EnterStableSt_A	9770838	871	0	0
PulseIsPulse_A	9770838	871	0	0
StayInStableSt	9770838	68035	0	0
gen_high_event_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_high_level_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_not_sticky_sva.StableStDropOut_A	9770838	758	0	0

CntClr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	2914	0	0
T10	8125	16	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	16	0	0
T33	0	56	0	0
T40	0	8	0	0
T42	0	30	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	6	0	0
T90	0	16	0	0
T91	0	38	0	0
T92	0	20	0	0
T93	0	20	0	0
T94	427	0	0	0
T95	1341	0	0	0

CntIncr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	107242	0	0
T10	8125	723	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	376	0	0
T33	0	1625	0	0
T40	0	156	0	0
T42	0	885	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	148	0	0
T90	0	462	0	0
T91	0	1140	0	0
T92	0	280	0	0
T93	0	340	0	0
T94	427	0	0	0
T95	1341	0	0	0

CntNoWrap_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9326231	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DetectStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	369	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T33	0	28	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	3	0	0
T90	0	1	0	0
T91	0	19	0	0
T94	427	0	0	0
T95	1341	0	0	0
T107	0	7	0	0
T250	0	9	0	0
T251	0	12	0	0
T254	0	10	0	0
T257	0	9	0	0

DetectedOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	69002	0	0
T10	8125	508	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	33	0	0
T40	0	1097	0	0
T41	0	2887	0	0
T42	0	1017	0	0
T44	0	1144	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	338	0	0
T92	0	824	0	0
T93	0	175	0	0
T94	427	0	0	0
T95	1341	0	0	0
T255	0	1382	0	0

DetectedPulseOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	871	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	8	0	0
T40	0	4	0	0
T41	0	32	0	0
T42	0	15	0	0
T44	0	15	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T92	0	10	0	0
T93	0	10	0	0
T94	427	0	0	0
T95	1341	0	0	0
T255	0	15	0	0

DisabledIdleSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8881968	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DisabledNoDetection_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8883636	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

EnterDebounceSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	1459	0	0
T10	8125	9	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	8	0	0
T33	0	28	0	0
T40	0	4	0	0
T42	0	15	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	3	0	0
T90	0	9	0	0
T91	0	19	0	0
T92	0	10	0	0
T93	0	10	0	0
T94	427	0	0	0
T95	1341	0	0	0

EnterDetectSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	1455	0	0
T10	8125	7	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	8	0	0
T33	0	28	0	0
T40	0	4	0	0
T42	0	15	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	3	0	0
T90	0	7	0	0
T91	0	19	0	0
T92	0	10	0	0
T93	0	10	0	0
T94	427	0	0	0
T95	1341	0	0	0

EnterStableSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	871	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	8	0	0
T40	0	4	0	0
T41	0	32	0	0
T42	0	15	0	0
T44	0	15	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T92	0	10	0	0
T93	0	10	0	0
T94	427	0	0	0
T95	1341	0	0	0
T255	0	15	0	0

PulseIsPulse_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	871	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	8	0	0
T40	0	4	0	0
T41	0	32	0	0
T42	0	15	0	0
T44	0	15	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T92	0	10	0	0
T93	0	10	0	0
T94	427	0	0	0
T95	1341	0	0	0
T255	0	15	0	0

StayInStableSt

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	68035	0	0
T10	8125	503	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	25	0	0
T40	0	1090	0	0
T41	0	2851	0	0
T42	0	1000	0	0
T44	0	1127	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	333	0	0
T92	0	814	0	0
T93	0	165	0	0
T94	427	0	0	0
T95	1341	0	0	0
T255	0	1364	0	0

gen_high_event_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_high_level_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_not_sticky_sva.StableStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	758	0	0
T10	8125	4	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	8	0	0
T40	0	1	0	0
T41	0	28	0	0
T42	0	13	0	0
T44	0	13	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T92	0	10	0	0
T93	0	10	0	0
T94	427	0	0	0
T95	1341	0	0	0
T255	0	12	0	0

Line Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect

	Line No.	Total	Covered	Percent
TOTAL		46	46	100.00
CONT_ASSIGN	60	1	1	100.00
ALWAYS	69	3	3	100.00
CONT_ASSIGN	76	1	1	100.00
CONT_ASSIGN	92	1	1	100.00
CONT_ASSIGN	99	1	1	100.00
CONT_ASSIGN	101	1	1	100.00
ALWAYS	104	3	3	100.00
ALWAYS	125	32	32	100.00
ALWAYS	219	3	3	100.00

59                        end else begin : gen_trigger_active_high
60         1/1              assign trigger_active = (trigger_i == 1'b1);
           Tests:       T10 T13 T21 
61                        end
62                      
63                        // In case of edge events, we also need to detect the transition.
64                        logic trigger_event;
65                        if (EventType inside {EdgeToLow, EdgeToHigh}) begin : gen_trigger_event_edge
66                          // This flop is always active, no matter the enable state.
67                          logic trigger_active_q;
68                          always_ff @(posedge clk_i or negedge rst_ni) begin : p_trigger_reg
69         1/1                if (!rst_ni) begin
           Tests:       T4 T5 T6 
70         1/1                  trigger_active_q <= 1'b0;
           Tests:       T4 T5 T6 
71                            end else begin
72         1/1                  trigger_active_q <= trigger_active;
           Tests:       T4 T5 T6 
73                            end
74                          end
75                      
76         1/1              assign trigger_event = trigger_active & ~trigger_active_q;
           Tests:       T4 T5 T6 
77                        // In case of level events, the event is equal to the level being active.
78                        end else begin : gen_trigger_event_level
79                          assign trigger_event = trigger_active;
80                        end
81                      
82                        /////////////////
83                        // Timer Logic //
84                        /////////////////
85                      
86                        // Take the maximum width of both timer values.
87                        localparam int unsigned TimerWidth =
88                            (DetectTimerWidth > DebounceTimerWidth) ? DetectTimerWidth : DebounceTimerWidth;
89                      
90                        logic cnt_en, cnt_clr;
91                        logic [TimerWidth-1:0] cnt_d, cnt_q;
92         1/1            assign cnt_d = (cnt_clr) ? '0           :
           Tests:       T10 T21 T34 
93                                       (cnt_en)  ? cnt_q + 1'b1 :
94                                                   cnt_q;
95                      
96                      
97                        logic cnt_done, thresh_sel;
98                        logic [TimerWidth-1:0] thresh;
99         1/1            assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
           Tests:       T5 T22 T2 
100                                                      TimerWidth'(cfg_debounce_timer_i);
101        1/1            assign cnt_done = (cnt_q >= thresh);
           Tests:       T5 T22 T2 
102                     
103                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_cnt_reg
104        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
105        1/1                cnt_q <= '0;
           Tests:       T4 T5 T6 
106                         end else begin
107        1/1                cnt_q <= cnt_d;
           Tests:       T4 T5 T6 
108                         end
109                       end
110                     
111                       /////////
112                       // FSM //
113                       /////////
114                     
115                       typedef enum logic [1:0] {
116                         IdleSt,
117                         DebounceSt,
118                         DetectSt,
119                         StableSt
120                       } state_t;
121                     
122                       state_t state_d, state_q;
123                     
124                       always_comb begin : p_fsm
125        1/1              state_d = state_q;
           Tests:       T4 T5 T6 
126                     
127                         // Counter controls (clear has priority).
128        1/1              cnt_clr = 1'b0;
           Tests:       T4 T5 T6 
129        1/1              cnt_en = 1'b0;
           Tests:       T4 T5 T6 
130                     
131                         // Detected outputs
132        1/1              event_detected_o = 1'b0;
           Tests:       T4 T5 T6 
133        1/1              event_detected_pulse_o = 1'b0;
           Tests:       T4 T5 T6 
134                     
135                         // Threshold select
136                         // 0: debounce
137                         // 1: detect
138        1/1              thresh_sel = 1'b0;
           Tests:       T4 T5 T6 
139                     
140        1/1              unique case (state_q)
           Tests:       T4 T5 T6 
141                           ////////////////////////////////////////////
142                           // We are waiting for the event to occur.
143                           // This can be either a specific level or edge,
144                           // depending on the configuration.
145                           IdleSt: begin
146                             // Stay here if the detector is disabled.
147        1/1                  if (trigger_event && cfg_enable_i) begin
           Tests:       T4 T5 T6 
148        1/1                    state_d = DebounceSt;
           Tests:       T10 T21 T34 
149        1/1                    cnt_en = 1'b1;
           Tests:       T10 T21 T34 
150                             end
                        MISSING_ELSE
151                           end
152                           ////////////////////////////////////////////
153                           // If an event has occurred, we back off for
154                           // the amount of debounce cycles configured.
155                           // Once the timer has expired, we sample the
156                           // signal again and check whether it has the
157                           // correct level. If so, we move on to the
158                           // detection stage, otherwise we fall back.
159                           DebounceSt: begin
160        1/1                  cnt_en = 1'b1;
           Tests:       T10 T21 T34 
161                             // Unconditionally go back to idle if the detector is disabled.
162        1/1                  if (!cfg_enable_i) begin
           Tests:       T10 T21 T34 
163        1/1                    state_d = IdleSt;
           Tests:       T10 T90 
164        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 
165        1/1                  end else if (cnt_done) begin
           Tests:       T10 T21 T34 
166        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T21 T34 
167        1/1                    if (trigger_active) begin
           Tests:       T10 T21 T34 
168        1/1                      state_d = DetectSt;
           Tests:       T10 T21 T34 
169                               end else begin
170        1/1                      state_d = IdleSt;
           Tests:       T96 T168 T258 
171                               end
172                             end
                        MISSING_ELSE
173                           end
174                           ////////////////////////////////////////////
175                           // Once the debounce period has passed, we
176                           // check whether the signal remains stable
177                           // throughout the entire detection period.
178                           // If it is not stable at any cycle, we fall
179                           // back to idle.
180                           DetectSt: begin
181        1/1                  thresh_sel = 1'b1;
           Tests:       T10 T21 T34 
182        1/1                  cnt_en = 1'b1;
           Tests:       T10 T21 T34 
183                             // Go back to idle if either the trigger level is not active anymore, or if the
184                             // detector is disabled.
185        1/1                  if (!cfg_enable_i || !trigger_active) begin
           Tests:       T10 T21 T34 
186        1/1                    state_d = IdleSt;
           Tests:       T10 T90 T259 
187        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 T259 
188                             // If the trigger is active, count up.
189                             end else begin
190        1/1                    if (cnt_done) begin
           Tests:       T10 T21 T34 
191        1/1                      state_d = StableSt;
           Tests:       T10 T21 T34 
192        1/1                      cnt_clr = 1'b1;
           Tests:       T10 T21 T34 
193        1/1                      event_detected_o = 1'b1;
           Tests:       T10 T21 T34 
194        1/1                      event_detected_pulse_o = 1'b1;
           Tests:       T10 T21 T34 
195                               end
                        MISSING_ELSE
196                             end
197                           end
198                           ////////////////////////////////////////////
199                           // At this point we have detected the event
200                           // and monitor whether the signal remains stable.
201                           StableSt: begin
202                             // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                             // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                             // to go back to the idle state.
205        1/1                  if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
           Tests:       T10 T21 T34 
206        1/1                    state_d = IdleSt;
           Tests:       T10 T21 T34 
207                             // Otherwise keep the event detected output signal high.
208                             end else begin
209        1/1                    event_detected_o = 1'b1;
           Tests:       T10 T21 T34 
210                             end
211                           end
212                           ////////////////////////////////////////////
213                           // This is a full case statement
214                           default: ;
Exclude Annotation: VC_COV_UNR
215                         endcase // state_q
216                       end
217                     
218                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_fsm_reg
219        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
220        1/1                state_q <= IdleSt;
           Tests:       T4 T5 T6 
221                         end else begin
222        1/1                state_q <= state_d;
           Tests:       T4 T5 T6 

---

Cond Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect

	Total	Covered	Percent
Conditions	22	22	100.00
Logical	22	22	100.00
Non-Logical	0	0
Event	0	0

 LINE       60
 EXPRESSION (trigger_i == 1'b1)
            ---------1---------

-1-	Status	Tests
0	Covered	T10,T13,T21
1	Covered	T4,T5,T6

 LINE       76
 EXPRESSION (trigger_active & ((~gen_trigger_event_edge.trigger_active_q)))
             -------1------   ----------------------2---------------------

-1-	-2-	Status	Tests
0	1	Covered	T10,T13,T21
1	0	Covered	T4,T5,T6
1	1	Covered	T4,T5,T6

 LINE       92
 EXPRESSION (cnt_clr ? '0 : (cnt_en ? ((cnt_q + 1'b1)) : cnt_q))
             ---1---

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T21,T34

 LINE       92
 SUB-EXPRESSION (cnt_en ? ((cnt_q + 1'b1)) : cnt_q)
                 ---1--

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T21,T34

 LINE       99
 EXPRESSION (thresh_sel ? (32'(cfg_detect_timer_i)) : (32'(cfg_debounce_timer_i)))
             -----1----

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T21,T34

 LINE       147
 EXPRESSION (trigger_event && cfg_enable_i)
             ------1------    ------2-----

-1-	-2-	Status	Tests
0	1	Covered	T10,T13,T21
1	0	Covered	T20,T104,T71
1	1	Covered	T10,T21,T34

 LINE       185
 EXPRESSION (((!cfg_enable_i)) || ((!trigger_active)))
             --------1--------    ---------2---------

-1-	-2-	Status	Tests
0	0	Covered	T10,T21,T34
0	1	Covered	T259,T260,T261
1	0	Covered	T10,T90

 LINE       205
 EXPRESSION (((!cfg_enable_i)) || (((!trigger_active)) && ((!Sticky))))
             --------1--------    ------------------2-----------------

-1-	-2-	Status	Tests
0	0	Covered	T10,T21,T34
0	1	Covered	T21,T34,T42
1	0	Covered	T10,T105

 LINE       205
 SUB-EXPRESSION (((!trigger_active)) && ((!Sticky)))
                 ---------1---------    -----2-----

-1-	-2-	Status	Tests
0	-	Covered	T10,T21,T34
1	-	Covered	T21,T34,T42

---

FSM Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect

Summary for FSM :: state_q

	Total	Covered	Percent
States	4	4	100.00	(Not included in score)
Transitions	6	6	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
DebounceSt	148	Covered	T10,T21,T34
DetectSt	168	Covered	T10,T21,T34
IdleSt	163	Covered	T4,T5,T6
StableSt	191	Covered	T10,T21,T34

transitions	Line No.	Covered	Tests
DebounceSt->DetectSt	168	Covered	T10,T21,T34
DebounceSt->IdleSt	163	Covered	T10,T96,T90
DetectSt->IdleSt	186	Covered	T10,T90,T259
DetectSt->StableSt	191	Covered	T10,T21,T34
IdleSt->DebounceSt	148	Covered	T10,T21,T34
StableSt->IdleSt	206	Covered	T10,T21,T34

---

Branch Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect

	Line No.	Total	Covered	Percent
Branches		22	22	100.00
TERNARY	92	3	3	100.00
TERNARY	99	2	2	100.00
IF	104	2	2	100.00
CASE	140	11	11	100.00
IF	219	2	2	100.00
IF	69	2	2	100.00

92           assign cnt_d = (cnt_clr) ? '0           :
                                      -1-  
                                      ==>  
93                          (cnt_en)  ? cnt_q + 1'b1 :
                                      -2-  
                                      ==>  
                                      ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T10,T21,T34
0	1	Covered	T10,T21,T34
0	0	Covered	T4,T5,T6

99           assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
                                          -1-  
                                          ==>  
                                          ==>  

Branches:

-1-	Status	Tests
1	Covered	T10,T21,T34
0	Covered	T4,T5,T6

104            if (!rst_ni) begin
               -1-  
105              cnt_q <= '0;
                 ==>
106            end else begin
107              cnt_q <= cnt_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

140            unique case (state_q)
                      -1-  
141              ////////////////////////////////////////////
142              // We are waiting for the event to occur.
143              // This can be either a specific level or edge,
144              // depending on the configuration.
145              IdleSt: begin
146                // Stay here if the detector is disabled.
147                if (trigger_event && cfg_enable_i) begin
                   -2-  
148                  state_d = DebounceSt;
                     ==>
149                  cnt_en = 1'b1;
150                end
                   MISSING_ELSE
                   ==>
151              end
152              ////////////////////////////////////////////
153              // If an event has occurred, we back off for
154              // the amount of debounce cycles configured.
155              // Once the timer has expired, we sample the
156              // signal again and check whether it has the
157              // correct level. If so, we move on to the
158              // detection stage, otherwise we fall back.
159              DebounceSt: begin
160                cnt_en = 1'b1;
161                // Unconditionally go back to idle if the detector is disabled.
162                if (!cfg_enable_i) begin
                   -3-  
163                  state_d = IdleSt;
                     ==>
164                  cnt_clr = 1'b1;
165                end else if (cnt_done) begin
                            -4-  
166                  cnt_clr = 1'b1;
167                  if (trigger_active) begin
                     -5-  
168                    state_d = DetectSt;
                       ==>
169                  end else begin
170                    state_d = IdleSt;
                       ==>
171                  end
172                end
                   MISSING_ELSE
                   ==>
173              end
174              ////////////////////////////////////////////
175              // Once the debounce period has passed, we
176              // check whether the signal remains stable
177              // throughout the entire detection period.
178              // If it is not stable at any cycle, we fall
179              // back to idle.
180              DetectSt: begin
181                thresh_sel = 1'b1;
182                cnt_en = 1'b1;
183                // Go back to idle if either the trigger level is not active anymore, or if the
184                // detector is disabled.
185                if (!cfg_enable_i || !trigger_active) begin
                   -6-  
186                  state_d = IdleSt;
                     ==>
187                  cnt_clr = 1'b1;
188                // If the trigger is active, count up.
189                end else begin
190                  if (cnt_done) begin
                     -7-  
191                    state_d = StableSt;
                       ==>
192                    cnt_clr = 1'b1;
193                    event_detected_o = 1'b1;
194                    event_detected_pulse_o = 1'b1;
195                  end
                     MISSING_ELSE
                     ==>
196                end
197              end
198              ////////////////////////////////////////////
199              // At this point we have detected the event
200              // and monitor whether the signal remains stable.
201              StableSt: begin
202                // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                // to go back to the idle state.
205                if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
                   -8-  
206                  state_d = IdleSt;
                     ==>
207                // Otherwise keep the event detected output signal high.
208                end else begin
209                  event_detected_o = 1'b1;
                     ==>
210                end
211              end
212              ////////////////////////////////////////////
213              // This is a full case statement
214              default: ;
                 ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
IdleSt	1	-	-	-	-	-	-	Covered	T10,T21,T34
IdleSt	0	-	-	-	-	-	-	Covered	T4,T5,T6
DebounceSt	-	1	-	-	-	-	-	Covered	T10,T90
DebounceSt	-	0	1	1	-	-	-	Covered	T10,T21,T34
DebounceSt	-	0	1	0	-	-	-	Covered	T96,T168,T258
DebounceSt	-	0	0	-	-	-	-	Covered	T10,T21,T34
DetectSt	-	-	-	-	1	-	-	Covered	T10,T90,T259
DetectSt	-	-	-	-	0	1	-	Covered	T10,T21,T34
DetectSt	-	-	-	-	0	0	-	Covered	T10,T21,T34
StableSt	-	-	-	-	-	-	1	Covered	T10,T21,T34
StableSt	-	-	-	-	-	-	0	Covered	T10,T21,T34
default	-	-	-	-	-	-	-	Excluded		VC_COV_UNR

219            if (!rst_ni) begin
               -1-  
220              state_q <= IdleSt;
                 ==>
221            end else begin
222              state_q <= state_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

69               if (!rst_ni) begin
                 -1-  
70                 trigger_active_q <= 1'b0;
                   ==>
71               end else begin
72                 trigger_active_q <= trigger_active;
                   ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

---

Assert Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[1].u_sysrst_ctrl_detect

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	15	15	100.00	15	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	15	15	100.00	15	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
CntClr_A	9770838	732	0	0
CntIncr_A	9770838	40324	0	0
CntNoWrap_A	9770838	9328413	0	0
DetectStDropOut_A	9770838	27	0	0
DetectedOut_A	9770838	13326	0	0
DetectedPulseOut_A	9770838	317	0	0
DisabledIdleSt_A	9770838	9010105	0	0
DisabledNoDetection_A	9770838	9011345	0	0
EnterDebounceSt_A	9770838	384	0	0
EnterDetectSt_A	9770838	348	0	0
EnterStableSt_A	9770838	317	0	0
PulseIsPulse_A	9770838	317	0	0
StayInStableSt	9770838	12979	0	0
gen_high_level_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_not_sticky_sva.StableStDropOut_A	9770838	279	0	0

CntClr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	732	0	0
T10	8125	8	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	8	0	0
T34	0	6	0	0
T40	0	6	0	0
T41	0	8	0	0
T42	0	4	0	0
T43	0	16	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	8	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	5	0	0
T97	0	20	0	0

CntIncr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	40324	0	0
T10	8125	332	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	424	0	0
T34	0	393	0	0
T40	0	126	0	0
T41	0	388	0	0
T42	0	120	0	0
T43	0	1010	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	195	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	257	0	0
T97	0	1050	0	0

CntNoWrap_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9328413	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DetectStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	27	0	0
T114	0	2	0	0
T259	21715	6	0	0
T260	0	2	0	0
T261	0	3	0	0
T262	0	7	0	0
T263	0	3	0	0
T264	0	4	0	0
T265	1696	0	0	0
T266	10971	0	0	0
T267	502	0	0	0
T268	406	0	0	0
T269	449	0	0	0
T270	522	0	0	0
T271	422	0	0	0
T272	524	0	0	0
T273	629	0	0	0

DetectedOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	13326	0	0
T10	8125	106	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	278	0	0
T34	0	108	0	0
T40	0	225	0	0
T41	0	313	0	0
T42	0	129	0	0
T43	0	261	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	77	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	169	0	0
T97	0	144	0	0

DetectedPulseOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	317	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	4	0	0
T34	0	3	0	0
T40	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T43	0	8	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	1	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	2	0	0
T97	0	10	0	0

DisabledIdleSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9010105	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DisabledNoDetection_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9011345	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

EnterDebounceSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	384	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	4	0	0
T34	0	3	0	0
T40	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T43	0	8	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	3	0	0
T97	0	10	0	0

EnterDetectSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	348	0	0
T10	8125	3	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	4	0	0
T34	0	3	0	0
T40	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T43	0	8	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	3	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	2	0	0
T97	0	10	0	0

EnterStableSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	317	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	4	0	0
T34	0	3	0	0
T40	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T43	0	8	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	1	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	2	0	0
T97	0	10	0	0

PulseIsPulse_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	317	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	4	0	0
T34	0	3	0	0
T40	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T43	0	8	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	1	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	2	0	0
T97	0	10	0	0

StayInStableSt

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	12979	0	0
T10	8125	105	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T21	0	274	0	0
T34	0	105	0	0
T40	0	222	0	0
T41	0	309	0	0
T42	0	127	0	0
T43	0	253	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	76	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	167	0	0
T97	0	133	0	0

gen_high_level_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_not_sticky_sva.StableStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	279	0	0
T21	17734	4	0	0
T34	0	3	0	0
T40	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T43	0	8	0	0
T51	537	0	0	0
T74	1549	0	0	0
T79	495	0	0	0
T90	0	1	0	0
T96	0	1	0	0
T97	0	8	0	0
T140	479	0	0	0
T168	0	5	0	0
T274	407	0	0	0
T275	522	0	0	0
T276	617	0	0	0
T277	503	0	0	0
T278	523	0	0	0

Line Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect_pre

	Line No.	Total	Covered	Percent
TOTAL		43	43	100.00
CONT_ASSIGN	60	1	1	100.00
CONT_ASSIGN	79	1	1	100.00
CONT_ASSIGN	92	1	1	100.00
CONT_ASSIGN	99	1	1	100.00
CONT_ASSIGN	101	1	1	100.00
ALWAYS	104	3	3	100.00
ALWAYS	125	32	32	100.00
ALWAYS	219	3	3	100.00

59                        end else begin : gen_trigger_active_high
60         1/1              assign trigger_active = (trigger_i == 1'b1);
           Tests:       T10 T13 T33 
61                        end
62                      
63                        // In case of edge events, we also need to detect the transition.
64                        logic trigger_event;
65                        if (EventType inside {EdgeToLow, EdgeToHigh}) begin : gen_trigger_event_edge
66                          // This flop is always active, no matter the enable state.
67                          logic trigger_active_q;
68                          always_ff @(posedge clk_i or negedge rst_ni) begin : p_trigger_reg
69                            if (!rst_ni) begin
70                              trigger_active_q <= 1'b0;
71                            end else begin
72                              trigger_active_q <= trigger_active;
73                            end
74                          end
75                      
76                          assign trigger_event = trigger_active & ~trigger_active_q;
77                        // In case of level events, the event is equal to the level being active.
78                        end else begin : gen_trigger_event_level
79         1/1              assign trigger_event = trigger_active;
           Tests:       T10 T13 T33 
80                        end
81                      
82                        /////////////////
83                        // Timer Logic //
84                        /////////////////
85                      
86                        // Take the maximum width of both timer values.
87                        localparam int unsigned TimerWidth =
88                            (DetectTimerWidth > DebounceTimerWidth) ? DetectTimerWidth : DebounceTimerWidth;
89                      
90                        logic cnt_en, cnt_clr;
91                        logic [TimerWidth-1:0] cnt_d, cnt_q;
92         1/1            assign cnt_d = (cnt_clr) ? '0           :
           Tests:       T10 T13 T33 
93                                       (cnt_en)  ? cnt_q + 1'b1 :
94                                                   cnt_q;
95                      
96                      
97                        logic cnt_done, thresh_sel;
98                        logic [TimerWidth-1:0] thresh;
99         1/1            assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
           Tests:       T5 T22 T2 
100                                                      TimerWidth'(cfg_debounce_timer_i);
101        1/1            assign cnt_done = (cnt_q >= thresh);
           Tests:       T5 T22 T2 
102                     
103                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_cnt_reg
104        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
105        1/1                cnt_q <= '0;
           Tests:       T4 T5 T6 
106                         end else begin
107        1/1                cnt_q <= cnt_d;
           Tests:       T4 T5 T6 
108                         end
109                       end
110                     
111                       /////////
112                       // FSM //
113                       /////////
114                     
115                       typedef enum logic [1:0] {
116                         IdleSt,
117                         DebounceSt,
118                         DetectSt,
119                         StableSt
120                       } state_t;
121                     
122                       state_t state_d, state_q;
123                     
124                       always_comb begin : p_fsm
125        1/1              state_d = state_q;
           Tests:       T10 T13 T33 
126                     
127                         // Counter controls (clear has priority).
128        1/1              cnt_clr = 1'b0;
           Tests:       T10 T13 T33 
129        1/1              cnt_en = 1'b0;
           Tests:       T10 T13 T33 
130                     
131                         // Detected outputs
132        1/1              event_detected_o = 1'b0;
           Tests:       T10 T13 T33 
133        1/1              event_detected_pulse_o = 1'b0;
           Tests:       T10 T13 T33 
134                     
135                         // Threshold select
136                         // 0: debounce
137                         // 1: detect
138        1/1              thresh_sel = 1'b0;
           Tests:       T10 T13 T33 
139                     
140        1/1              unique case (state_q)
           Tests:       T10 T13 T33 
141                           ////////////////////////////////////////////
142                           // We are waiting for the event to occur.
143                           // This can be either a specific level or edge,
144                           // depending on the configuration.
145                           IdleSt: begin
146                             // Stay here if the detector is disabled.
147        1/1                  if (trigger_event && cfg_enable_i) begin
           Tests:       T10 T13 T33 
148        1/1                    state_d = DebounceSt;
           Tests:       T10 T13 T33 
149        1/1                    cnt_en = 1'b1;
           Tests:       T10 T13 T33 
150                             end
                        MISSING_ELSE
151                           end
152                           ////////////////////////////////////////////
153                           // If an event has occurred, we back off for
154                           // the amount of debounce cycles configured.
155                           // Once the timer has expired, we sample the
156                           // signal again and check whether it has the
157                           // correct level. If so, we move on to the
158                           // detection stage, otherwise we fall back.
159                           DebounceSt: begin
160        1/1                  cnt_en = 1'b1;
           Tests:       T10 T13 T33 
161                             // Unconditionally go back to idle if the detector is disabled.
162        1/1                  if (!cfg_enable_i) begin
           Tests:       T10 T13 T33 
163        1/1                    state_d = IdleSt;
           Tests:       T10 T90 
164        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 
165        1/1                  end else if (cnt_done) begin
           Tests:       T10 T13 T33 
166        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T13 T33 
167        1/1                    if (trigger_active) begin
           Tests:       T10 T13 T33 
168        1/1                      state_d = DetectSt;
           Tests:       T10 T13 T33 
169                               end else begin
170        1/1                      state_d = IdleSt;
           Tests:       T10 T90 
171                               end
172                             end
                        MISSING_ELSE
173                           end
174                           ////////////////////////////////////////////
175                           // Once the debounce period has passed, we
176                           // check whether the signal remains stable
177                           // throughout the entire detection period.
178                           // If it is not stable at any cycle, we fall
179                           // back to idle.
180                           DetectSt: begin
181        1/1                  thresh_sel = 1'b1;
           Tests:       T10 T13 T33 
182        1/1                  cnt_en = 1'b1;
           Tests:       T10 T13 T33 
183                             // Go back to idle if either the trigger level is not active anymore, or if the
184                             // detector is disabled.
185        1/1                  if (!cfg_enable_i || !trigger_active) begin
           Tests:       T10 T13 T33 
186        1/1                    state_d = IdleSt;
           Tests:       T10 T33 T89 
187        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T33 T89 
188                             // If the trigger is active, count up.
189                             end else begin
190        1/1                    if (cnt_done) begin
           Tests:       T10 T13 T33 
191        1/1                      state_d = StableSt;
           Tests:       T10 T13 T42 
192        1/1                      cnt_clr = 1'b1;
           Tests:       T10 T13 T42 
193        1/1                      event_detected_o = 1'b1;
           Tests:       T10 T13 T42 
194        1/1                      event_detected_pulse_o = 1'b1;
           Tests:       T10 T13 T42 
195                               end
                        MISSING_ELSE
196                             end
197                           end
198                           ////////////////////////////////////////////
199                           // At this point we have detected the event
200                           // and monitor whether the signal remains stable.
201                           StableSt: begin
202                             // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                             // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                             // to go back to the idle state.
205        1/1                  if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
           Tests:       T10 T13 T42 
206        1/1                    state_d = IdleSt;
           Tests:       T10 T13 T42 
207                             // Otherwise keep the event detected output signal high.
208                             end else begin
209        1/1                    event_detected_o = 1'b1;
           Tests:       T10 T13 T42 
210                             end
211                           end
212                           ////////////////////////////////////////////
213                           // This is a full case statement
214                           default: ;
Exclude Annotation: VC_COV_UNR
215                         endcase // state_q
216                       end
217                     
218                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_fsm_reg
219        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
220        1/1                state_q <= IdleSt;
           Tests:       T4 T5 T6 
221                         end else begin
222        1/1                state_q <= state_d;
           Tests:       T4 T5 T6 

---

Cond Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect_pre

	Total	Covered	Percent
Conditions	19	19	100.00
Logical	19	19	100.00
Non-Logical	0	0
Event	0	0

 LINE       60
 EXPRESSION (trigger_i == 1'b1)
            ---------1---------

-1-	Status	Tests
0	Covered	T10,T13,T33
1	Covered	T4,T5,T6

 LINE       92
 EXPRESSION (cnt_clr ? '0 : (cnt_en ? ((cnt_q + 1'b1)) : cnt_q))
             ---1---

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T33

 LINE       92
 SUB-EXPRESSION (cnt_en ? ((cnt_q + 1'b1)) : cnt_q)
                 ---1--

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T33

 LINE       99
 EXPRESSION (thresh_sel ? (32'(cfg_detect_timer_i)) : (32'(cfg_debounce_timer_i)))
             -----1----

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T33

 LINE       147
 EXPRESSION (trigger_event && cfg_enable_i)
             ------1------    ------2-----

-1-	-2-	Status	Tests
0	1	Covered	T10,T13,T33
1	0	Covered	T10,T13,T42
1	1	Covered	T10,T13,T33

 LINE       185
 EXPRESSION (((!cfg_enable_i)) || ((!trigger_active)))
             --------1--------    ---------2---------

-1-	-2-	Status	Tests
0	0	Covered	T10,T13,T33
0	1	Covered	T10,T33,T89
1	0	Covered	T10,T90,T92

 LINE       205
 EXPRESSION (((!cfg_enable_i)) || (((!trigger_active)) && ((!Sticky))))
             --------1--------    ------------------2-----------------

-1-	-2-	Status	Tests
0	0	Covered	T10,T13,T42
0	1	Covered	T10,T13,T42
1	0	Covered	T10,T279

 LINE       205
 SUB-EXPRESSION (((!trigger_active)) && ((!Sticky)))
                 ---------1---------    -----2-----

-1-	-2-	Status	Tests
0	-	Covered	T10,T13,T42
1	-	Covered	T10,T13,T42

---

FSM Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect_pre

Summary for FSM :: state_q

	Total	Covered	Percent
States	4	4	100.00	(Not included in score)
Transitions	6	6	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
DebounceSt	148	Covered	T10,T13,T33
DetectSt	168	Covered	T10,T13,T33
IdleSt	163	Covered	T4,T5,T6
StableSt	191	Covered	T10,T13,T42

transitions	Line No.	Covered	Tests
DebounceSt->DetectSt	168	Covered	T10,T13,T33
DebounceSt->IdleSt	163	Covered	T10,T90
DetectSt->IdleSt	186	Covered	T10,T33,T89
DetectSt->StableSt	191	Covered	T10,T13,T42
IdleSt->DebounceSt	148	Covered	T10,T13,T33
StableSt->IdleSt	206	Covered	T10,T13,T42

---

Branch Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect_pre

	Line No.	Total	Covered	Percent
Branches		20	20	100.00
TERNARY	92	3	3	100.00
TERNARY	99	2	2	100.00
IF	104	2	2	100.00
CASE	140	11	11	100.00
IF	219	2	2	100.00

92           assign cnt_d = (cnt_clr) ? '0           :
                                      -1-  
                                      ==>  
93                          (cnt_en)  ? cnt_q + 1'b1 :
                                      -2-  
                                      ==>  
                                      ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T10,T13,T33
0	1	Covered	T10,T13,T33
0	0	Covered	T4,T5,T6

99           assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
                                          -1-  
                                          ==>  
                                          ==>  

Branches:

-1-	Status	Tests
1	Covered	T10,T13,T33
0	Covered	T4,T5,T6

104            if (!rst_ni) begin
               -1-  
105              cnt_q <= '0;
                 ==>
106            end else begin
107              cnt_q <= cnt_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

140            unique case (state_q)
                      -1-  
141              ////////////////////////////////////////////
142              // We are waiting for the event to occur.
143              // This can be either a specific level or edge,
144              // depending on the configuration.
145              IdleSt: begin
146                // Stay here if the detector is disabled.
147                if (trigger_event && cfg_enable_i) begin
                   -2-  
148                  state_d = DebounceSt;
                     ==>
149                  cnt_en = 1'b1;
150                end
                   MISSING_ELSE
                   ==>
151              end
152              ////////////////////////////////////////////
153              // If an event has occurred, we back off for
154              // the amount of debounce cycles configured.
155              // Once the timer has expired, we sample the
156              // signal again and check whether it has the
157              // correct level. If so, we move on to the
158              // detection stage, otherwise we fall back.
159              DebounceSt: begin
160                cnt_en = 1'b1;
161                // Unconditionally go back to idle if the detector is disabled.
162                if (!cfg_enable_i) begin
                   -3-  
163                  state_d = IdleSt;
                     ==>
164                  cnt_clr = 1'b1;
165                end else if (cnt_done) begin
                            -4-  
166                  cnt_clr = 1'b1;
167                  if (trigger_active) begin
                     -5-  
168                    state_d = DetectSt;
                       ==>
169                  end else begin
170                    state_d = IdleSt;
                       ==>
171                  end
172                end
                   MISSING_ELSE
                   ==>
173              end
174              ////////////////////////////////////////////
175              // Once the debounce period has passed, we
176              // check whether the signal remains stable
177              // throughout the entire detection period.
178              // If it is not stable at any cycle, we fall
179              // back to idle.
180              DetectSt: begin
181                thresh_sel = 1'b1;
182                cnt_en = 1'b1;
183                // Go back to idle if either the trigger level is not active anymore, or if the
184                // detector is disabled.
185                if (!cfg_enable_i || !trigger_active) begin
                   -6-  
186                  state_d = IdleSt;
                     ==>
187                  cnt_clr = 1'b1;
188                // If the trigger is active, count up.
189                end else begin
190                  if (cnt_done) begin
                     -7-  
191                    state_d = StableSt;
                       ==>
192                    cnt_clr = 1'b1;
193                    event_detected_o = 1'b1;
194                    event_detected_pulse_o = 1'b1;
195                  end
                     MISSING_ELSE
                     ==>
196                end
197              end
198              ////////////////////////////////////////////
199              // At this point we have detected the event
200              // and monitor whether the signal remains stable.
201              StableSt: begin
202                // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                // to go back to the idle state.
205                if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
                   -8-  
206                  state_d = IdleSt;
                     ==>
207                // Otherwise keep the event detected output signal high.
208                end else begin
209                  event_detected_o = 1'b1;
                     ==>
210                end
211              end
212              ////////////////////////////////////////////
213              // This is a full case statement
214              default: ;
                 ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
IdleSt	1	-	-	-	-	-	-	Covered	T10,T13,T33
IdleSt	0	-	-	-	-	-	-	Covered	T10,T13,T33
DebounceSt	-	1	-	-	-	-	-	Covered	T10,T90
DebounceSt	-	0	1	1	-	-	-	Covered	T10,T13,T33
DebounceSt	-	0	1	0	-	-	-	Covered	T10,T90
DebounceSt	-	0	0	-	-	-	-	Covered	T10,T13,T33
DetectSt	-	-	-	-	1	-	-	Covered	T10,T33,T89
DetectSt	-	-	-	-	0	1	-	Covered	T10,T13,T42
DetectSt	-	-	-	-	0	0	-	Covered	T10,T13,T33
StableSt	-	-	-	-	-	-	1	Covered	T10,T13,T42
StableSt	-	-	-	-	-	-	0	Covered	T10,T13,T42
default	-	-	-	-	-	-	-	Excluded		VC_COV_UNR

219            if (!rst_ni) begin
               -1-  
220              state_q <= IdleSt;
                 ==>
221            end else begin
222              state_q <= state_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

---

Assert Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect_pre

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	16	16	100.00	16	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	16	16	100.00	16	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
CntClr_A	9770838	3122	0	0
CntIncr_A	9770838	107842	0	0
CntNoWrap_A	9770838	9326023	0	0
DetectStDropOut_A	9770838	400	0	0
DetectedOut_A	9770838	74613	0	0
DetectedPulseOut_A	9770838	941	0	0
DisabledIdleSt_A	9770838	8879166	0	0
DisabledNoDetection_A	9770838	8880824	0	0
EnterDebounceSt_A	9770838	1563	0	0
EnterDetectSt_A	9770838	1559	0	0
EnterStableSt_A	9770838	941	0	0
PulseIsPulse_A	9770838	941	0	0
StayInStableSt	9770838	73567	0	0
gen_high_event_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_high_level_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_not_sticky_sva.StableStDropOut_A	9770838	829	0	0

CntClr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	3122	0	0
T10	8125	16	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	50	0	0
T33	0	48	0	0
T40	0	22	0	0
T42	0	32	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	18	0	0
T90	0	16	0	0
T91	0	52	0	0
T92	0	54	0	0
T93	0	60	0	0
T94	427	0	0	0
T95	1341	0	0	0

CntIncr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	107842	0	0
T10	8125	575	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	850	0	0
T33	0	1396	0	0
T40	0	720	0	0
T42	0	1152	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	444	0	0
T90	0	434	0	0
T91	0	1555	0	0
T92	0	1454	0	0
T93	0	1487	0	0
T94	427	0	0	0
T95	1341	0	0	0

CntNoWrap_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9326023	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DetectStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	400	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	0	0	0
T33	0	24	0	0
T40	0	11	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	9	0	0
T90	0	1	0	0
T91	0	26	0	0
T93	0	14	0	0
T94	427	0	0	0
T95	1341	0	0	0
T254	0	11	0	0
T257	0	7	0	0
T280	0	10	0	0

DetectedOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	74613	0	0
T10	8125	392	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	1725	0	0
T41	0	1527	0	0
T42	0	1869	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	394	0	0
T94	427	0	0	0
T95	1341	0	0	0
T107	0	844	0	0
T255	0	1412	0	0
T266	0	2009	0	0
T281	0	1572	0	0
T282	0	1143	0	0

DetectedPulseOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	941	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	25	0	0
T41	0	14	0	0
T42	0	16	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T94	427	0	0	0
T95	1341	0	0	0
T107	0	18	0	0
T255	0	15	0	0
T266	0	26	0	0
T281	0	30	0	0
T282	0	15	0	0

DisabledIdleSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8879166	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DisabledNoDetection_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8880824	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

EnterDebounceSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	1563	0	0
T10	8125	9	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	25	0	0
T33	0	24	0	0
T40	0	11	0	0
T42	0	16	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	9	0	0
T90	0	9	0	0
T91	0	26	0	0
T92	0	27	0	0
T93	0	30	0	0
T94	427	0	0	0
T95	1341	0	0	0

EnterDetectSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	1559	0	0
T10	8125	7	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	25	0	0
T33	0	24	0	0
T40	0	11	0	0
T42	0	16	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T89	0	9	0	0
T90	0	7	0	0
T91	0	26	0	0
T92	0	27	0	0
T93	0	30	0	0
T94	427	0	0	0
T95	1341	0	0	0

EnterStableSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	941	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	25	0	0
T41	0	14	0	0
T42	0	16	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T94	427	0	0	0
T95	1341	0	0	0
T107	0	18	0	0
T255	0	15	0	0
T266	0	26	0	0
T281	0	30	0	0
T282	0	15	0	0

PulseIsPulse_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	941	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	25	0	0
T41	0	14	0	0
T42	0	16	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T94	427	0	0	0
T95	1341	0	0	0
T107	0	18	0	0
T255	0	15	0	0
T266	0	26	0	0
T281	0	30	0	0
T282	0	15	0	0

StayInStableSt

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	73567	0	0
T10	8125	387	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	1698	0	0
T41	0	1512	0	0
T42	0	1851	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	389	0	0
T94	427	0	0	0
T95	1341	0	0	0
T107	0	826	0	0
T255	0	1394	0	0
T266	0	1983	0	0
T281	0	1539	0	0
T282	0	1127	0	0

gen_high_event_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_high_level_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_not_sticky_sva.StableStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	829	0	0
T10	8125	4	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	23	0	0
T41	0	13	0	0
T42	0	14	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T94	427	0	0	0
T95	1341	0	0	0
T107	0	18	0	0
T255	0	12	0	0
T266	0	26	0	0
T281	0	27	0	0
T282	0	14	0	0

Line Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect

	Line No.	Total	Covered	Percent
TOTAL		46	46	100.00
CONT_ASSIGN	60	1	1	100.00
ALWAYS	69	3	3	100.00
CONT_ASSIGN	76	1	1	100.00
CONT_ASSIGN	92	1	1	100.00
CONT_ASSIGN	99	1	1	100.00
CONT_ASSIGN	101	1	1	100.00
ALWAYS	104	3	3	100.00
ALWAYS	125	32	32	100.00
ALWAYS	219	3	3	100.00

59                        end else begin : gen_trigger_active_high
60         1/1              assign trigger_active = (trigger_i == 1'b1);
           Tests:       T10 T13 T21 
61                        end
62                      
63                        // In case of edge events, we also need to detect the transition.
64                        logic trigger_event;
65                        if (EventType inside {EdgeToLow, EdgeToHigh}) begin : gen_trigger_event_edge
66                          // This flop is always active, no matter the enable state.
67                          logic trigger_active_q;
68                          always_ff @(posedge clk_i or negedge rst_ni) begin : p_trigger_reg
69         1/1                if (!rst_ni) begin
           Tests:       T4 T5 T6 
70         1/1                  trigger_active_q <= 1'b0;
           Tests:       T4 T5 T6 
71                            end else begin
72         1/1                  trigger_active_q <= trigger_active;
           Tests:       T4 T5 T6 
73                            end
74                          end
75                      
76         1/1              assign trigger_event = trigger_active & ~trigger_active_q;
           Tests:       T4 T5 T6 
77                        // In case of level events, the event is equal to the level being active.
78                        end else begin : gen_trigger_event_level
79                          assign trigger_event = trigger_active;
80                        end
81                      
82                        /////////////////
83                        // Timer Logic //
84                        /////////////////
85                      
86                        // Take the maximum width of both timer values.
87                        localparam int unsigned TimerWidth =
88                            (DetectTimerWidth > DebounceTimerWidth) ? DetectTimerWidth : DebounceTimerWidth;
89                      
90                        logic cnt_en, cnt_clr;
91                        logic [TimerWidth-1:0] cnt_d, cnt_q;
92         1/1            assign cnt_d = (cnt_clr) ? '0           :
           Tests:       T10 T13 T21 
93                                       (cnt_en)  ? cnt_q + 1'b1 :
94                                                   cnt_q;
95                      
96                      
97                        logic cnt_done, thresh_sel;
98                        logic [TimerWidth-1:0] thresh;
99         1/1            assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
           Tests:       T5 T22 T2 
100                                                      TimerWidth'(cfg_debounce_timer_i);
101        1/1            assign cnt_done = (cnt_q >= thresh);
           Tests:       T5 T22 T2 
102                     
103                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_cnt_reg
104        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
105        1/1                cnt_q <= '0;
           Tests:       T4 T5 T6 
106                         end else begin
107        1/1                cnt_q <= cnt_d;
           Tests:       T4 T5 T6 
108                         end
109                       end
110                     
111                       /////////
112                       // FSM //
113                       /////////
114                     
115                       typedef enum logic [1:0] {
116                         IdleSt,
117                         DebounceSt,
118                         DetectSt,
119                         StableSt
120                       } state_t;
121                     
122                       state_t state_d, state_q;
123                     
124                       always_comb begin : p_fsm
125        1/1              state_d = state_q;
           Tests:       T4 T5 T6 
126                     
127                         // Counter controls (clear has priority).
128        1/1              cnt_clr = 1'b0;
           Tests:       T4 T5 T6 
129        1/1              cnt_en = 1'b0;
           Tests:       T4 T5 T6 
130                     
131                         // Detected outputs
132        1/1              event_detected_o = 1'b0;
           Tests:       T4 T5 T6 
133        1/1              event_detected_pulse_o = 1'b0;
           Tests:       T4 T5 T6 
134                     
135                         // Threshold select
136                         // 0: debounce
137                         // 1: detect
138        1/1              thresh_sel = 1'b0;
           Tests:       T4 T5 T6 
139                     
140        1/1              unique case (state_q)
           Tests:       T4 T5 T6 
141                           ////////////////////////////////////////////
142                           // We are waiting for the event to occur.
143                           // This can be either a specific level or edge,
144                           // depending on the configuration.
145                           IdleSt: begin
146                             // Stay here if the detector is disabled.
147        1/1                  if (trigger_event && cfg_enable_i) begin
           Tests:       T4 T5 T6 
148        1/1                    state_d = DebounceSt;
           Tests:       T10 T13 T21 
149        1/1                    cnt_en = 1'b1;
           Tests:       T10 T13 T21 
150                             end
                        MISSING_ELSE
151                           end
152                           ////////////////////////////////////////////
153                           // If an event has occurred, we back off for
154                           // the amount of debounce cycles configured.
155                           // Once the timer has expired, we sample the
156                           // signal again and check whether it has the
157                           // correct level. If so, we move on to the
158                           // detection stage, otherwise we fall back.
159                           DebounceSt: begin
160        1/1                  cnt_en = 1'b1;
           Tests:       T10 T13 T21 
161                             // Unconditionally go back to idle if the detector is disabled.
162        1/1                  if (!cfg_enable_i) begin
           Tests:       T10 T13 T21 
163        1/1                    state_d = IdleSt;
           Tests:       T10 T90 
164        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 
165        1/1                  end else if (cnt_done) begin
           Tests:       T10 T13 T21 
166        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T13 T21 
167        1/1                    if (trigger_active) begin
           Tests:       T10 T13 T21 
168        1/1                      state_d = DetectSt;
           Tests:       T10 T13 T21 
169                               end else begin
170        1/1                      state_d = IdleSt;
           Tests:       T43 T283 T284 
171                               end
172                             end
                        MISSING_ELSE
173                           end
174                           ////////////////////////////////////////////
175                           // Once the debounce period has passed, we
176                           // check whether the signal remains stable
177                           // throughout the entire detection period.
178                           // If it is not stable at any cycle, we fall
179                           // back to idle.
180                           DetectSt: begin
181        1/1                  thresh_sel = 1'b1;
           Tests:       T10 T13 T21 
182        1/1                  cnt_en = 1'b1;
           Tests:       T10 T13 T21 
183                             // Go back to idle if either the trigger level is not active anymore, or if the
184                             // detector is disabled.
185        1/1                  if (!cfg_enable_i || !trigger_active) begin
           Tests:       T10 T13 T21 
186        1/1                    state_d = IdleSt;
           Tests:       T10 T90 T43 
187        1/1                    cnt_clr = 1'b1;
           Tests:       T10 T90 T43 
188                             // If the trigger is active, count up.
189                             end else begin
190        1/1                    if (cnt_done) begin
           Tests:       T10 T13 T21 
191        1/1                      state_d = StableSt;
           Tests:       T10 T13 T21 
192        1/1                      cnt_clr = 1'b1;
           Tests:       T10 T13 T21 
193        1/1                      event_detected_o = 1'b1;
           Tests:       T10 T13 T21 
194        1/1                      event_detected_pulse_o = 1'b1;
           Tests:       T10 T13 T21 
195                               end
                        MISSING_ELSE
196                             end
197                           end
198                           ////////////////////////////////////////////
199                           // At this point we have detected the event
200                           // and monitor whether the signal remains stable.
201                           StableSt: begin
202                             // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                             // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                             // to go back to the idle state.
205        1/1                  if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
           Tests:       T10 T13 T21 
206        1/1                    state_d = IdleSt;
           Tests:       T10 T13 T21 
207                             // Otherwise keep the event detected output signal high.
208                             end else begin
209        1/1                    event_detected_o = 1'b1;
           Tests:       T10 T13 T21 
210                             end
211                           end
212                           ////////////////////////////////////////////
213                           // This is a full case statement
214                           default: ;
Exclude Annotation: VC_COV_UNR
215                         endcase // state_q
216                       end
217                     
218                       always_ff @(posedge clk_i or negedge rst_ni) begin : p_fsm_reg
219        1/1              if (!rst_ni) begin
           Tests:       T4 T5 T6 
220        1/1                state_q <= IdleSt;
           Tests:       T4 T5 T6 
221                         end else begin
222        1/1                state_q <= state_d;
           Tests:       T4 T5 T6 

---

Cond Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect

	Total	Covered	Percent
Conditions	22	22	100.00
Logical	22	22	100.00
Non-Logical	0	0
Event	0	0

 LINE       60
 EXPRESSION (trigger_i == 1'b1)
            ---------1---------

-1-	Status	Tests
0	Covered	T10,T13,T21
1	Covered	T4,T5,T6

 LINE       76
 EXPRESSION (trigger_active & ((~gen_trigger_event_edge.trigger_active_q)))
             -------1------   ----------------------2---------------------

-1-	-2-	Status	Tests
0	1	Covered	T10,T13,T21
1	0	Covered	T4,T5,T6
1	1	Covered	T4,T5,T6

 LINE       92
 EXPRESSION (cnt_clr ? '0 : (cnt_en ? ((cnt_q + 1'b1)) : cnt_q))
             ---1---

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T21

 LINE       92
 SUB-EXPRESSION (cnt_en ? ((cnt_q + 1'b1)) : cnt_q)
                 ---1--

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T21

 LINE       99
 EXPRESSION (thresh_sel ? (32'(cfg_detect_timer_i)) : (32'(cfg_debounce_timer_i)))
             -----1----

-1-	Status	Tests
0	Covered	T4,T5,T6
1	Covered	T10,T13,T21

 LINE       147
 EXPRESSION (trigger_event && cfg_enable_i)
             ------1------    ------2-----

-1-	-2-	Status	Tests
0	1	Covered	T10,T13,T21
1	0	Covered	T20,T104,T71
1	1	Covered	T10,T13,T21

 LINE       185
 EXPRESSION (((!cfg_enable_i)) || ((!trigger_active)))
             --------1--------    ---------2---------

-1-	-2-	Status	Tests
0	0	Covered	T10,T13,T21
0	1	Covered	T43,T258,T284
1	0	Covered	T10,T90

 LINE       205
 EXPRESSION (((!cfg_enable_i)) || (((!trigger_active)) && ((!Sticky))))
             --------1--------    ------------------2-----------------

-1-	-2-	Status	Tests
0	0	Covered	T10,T13,T21
0	1	Covered	T10,T13,T21
1	0	Covered	T90

 LINE       205
 SUB-EXPRESSION (((!trigger_active)) && ((!Sticky)))
                 ---------1---------    -----2-----

-1-	-2-	Status	Tests
0	-	Covered	T10,T13,T21
1	-	Covered	T10,T13,T21

---

FSM Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect

Summary for FSM :: state_q

	Total	Covered	Percent
States	4	4	100.00	(Not included in score)
Transitions	6	6	100.00
Sequences	0	0

State, Transition and Sequence Details for FSM :: state_q

---

states	Line No.	Covered	Tests
DebounceSt	148	Covered	T10,T13,T21
DetectSt	168	Covered	T10,T13,T21
IdleSt	163	Covered	T4,T5,T6
StableSt	191	Covered	T10,T13,T21

transitions	Line No.	Covered	Tests
DebounceSt->DetectSt	168	Covered	T10,T13,T21
DebounceSt->IdleSt	163	Covered	T10,T90,T43
DetectSt->IdleSt	186	Covered	T10,T90,T43
DetectSt->StableSt	191	Covered	T10,T13,T21
IdleSt->DebounceSt	148	Covered	T10,T13,T21
StableSt->IdleSt	206	Covered	T10,T13,T21

---

Branch Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect

	Line No.	Total	Covered	Percent
Branches		22	22	100.00
TERNARY	92	3	3	100.00
TERNARY	99	2	2	100.00
IF	104	2	2	100.00
CASE	140	11	11	100.00
IF	219	2	2	100.00
IF	69	2	2	100.00

92           assign cnt_d = (cnt_clr) ? '0           :
                                      -1-  
                                      ==>  
93                          (cnt_en)  ? cnt_q + 1'b1 :
                                      -2-  
                                      ==>  
                                      ==>  

Branches:

-1-	-2-	Status	Tests
1	-	Covered	T10,T13,T21
0	1	Covered	T10,T13,T21
0	0	Covered	T4,T5,T6

99           assign thresh = (thresh_sel) ? TimerWidth'(cfg_detect_timer_i) :
                                          -1-  
                                          ==>  
                                          ==>  

Branches:

-1-	Status	Tests
1	Covered	T10,T13,T21
0	Covered	T4,T5,T6

104            if (!rst_ni) begin
               -1-  
105              cnt_q <= '0;
                 ==>
106            end else begin
107              cnt_q <= cnt_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

140            unique case (state_q)
                      -1-  
141              ////////////////////////////////////////////
142              // We are waiting for the event to occur.
143              // This can be either a specific level or edge,
144              // depending on the configuration.
145              IdleSt: begin
146                // Stay here if the detector is disabled.
147                if (trigger_event && cfg_enable_i) begin
                   -2-  
148                  state_d = DebounceSt;
                     ==>
149                  cnt_en = 1'b1;
150                end
                   MISSING_ELSE
                   ==>
151              end
152              ////////////////////////////////////////////
153              // If an event has occurred, we back off for
154              // the amount of debounce cycles configured.
155              // Once the timer has expired, we sample the
156              // signal again and check whether it has the
157              // correct level. If so, we move on to the
158              // detection stage, otherwise we fall back.
159              DebounceSt: begin
160                cnt_en = 1'b1;
161                // Unconditionally go back to idle if the detector is disabled.
162                if (!cfg_enable_i) begin
                   -3-  
163                  state_d = IdleSt;
                     ==>
164                  cnt_clr = 1'b1;
165                end else if (cnt_done) begin
                            -4-  
166                  cnt_clr = 1'b1;
167                  if (trigger_active) begin
                     -5-  
168                    state_d = DetectSt;
                       ==>
169                  end else begin
170                    state_d = IdleSt;
                       ==>
171                  end
172                end
                   MISSING_ELSE
                   ==>
173              end
174              ////////////////////////////////////////////
175              // Once the debounce period has passed, we
176              // check whether the signal remains stable
177              // throughout the entire detection period.
178              // If it is not stable at any cycle, we fall
179              // back to idle.
180              DetectSt: begin
181                thresh_sel = 1'b1;
182                cnt_en = 1'b1;
183                // Go back to idle if either the trigger level is not active anymore, or if the
184                // detector is disabled.
185                if (!cfg_enable_i || !trigger_active) begin
                   -6-  
186                  state_d = IdleSt;
                     ==>
187                  cnt_clr = 1'b1;
188                // If the trigger is active, count up.
189                end else begin
190                  if (cnt_done) begin
                     -7-  
191                    state_d = StableSt;
                       ==>
192                    cnt_clr = 1'b1;
193                    event_detected_o = 1'b1;
194                    event_detected_pulse_o = 1'b1;
195                  end
                     MISSING_ELSE
                     ==>
196                end
197              end
198              ////////////////////////////////////////////
199              // At this point we have detected the event
200              // and monitor whether the signal remains stable.
201              StableSt: begin
202                // Go back to idle if either the trigger level is not active anymore, or if the detector is
203                // disabled. Note that if the detector is sticky, it has to be explicitly disabled in order
204                // to go back to the idle state.
205                if (!cfg_enable_i || (!trigger_active && !Sticky)) begin
                   -8-  
206                  state_d = IdleSt;
                     ==>
207                // Otherwise keep the event detected output signal high.
208                end else begin
209                  event_detected_o = 1'b1;
                     ==>
210                end
211              end
212              ////////////////////////////////////////////
213              // This is a full case statement
214              default: ;
                 ==> (Excluded)
Exclude Annotation: VC_COV_UNR

Branches:

-1-	-2-	-3-	-4-	-5-	-6-	-7-	-8-	Status	Tests	Exclude Annotation
IdleSt	1	-	-	-	-	-	-	Covered	T10,T13,T21
IdleSt	0	-	-	-	-	-	-	Covered	T4,T5,T6
DebounceSt	-	1	-	-	-	-	-	Covered	T10,T90
DebounceSt	-	0	1	1	-	-	-	Covered	T10,T13,T21
DebounceSt	-	0	1	0	-	-	-	Covered	T43,T283,T284
DebounceSt	-	0	0	-	-	-	-	Covered	T10,T13,T21
DetectSt	-	-	-	-	1	-	-	Covered	T10,T90,T43
DetectSt	-	-	-	-	0	1	-	Covered	T10,T13,T21
DetectSt	-	-	-	-	0	0	-	Covered	T10,T13,T21
StableSt	-	-	-	-	-	-	1	Covered	T10,T13,T21
StableSt	-	-	-	-	-	-	0	Covered	T10,T13,T21
default	-	-	-	-	-	-	-	Excluded		VC_COV_UNR

219            if (!rst_ni) begin
               -1-  
220              state_q <= IdleSt;
                 ==>
221            end else begin
222              state_q <= state_d;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

69               if (!rst_ni) begin
                 -1-  
70                 trigger_active_q <= 1'b0;
                   ==>
71               end else begin
72                 trigger_active_q <= trigger_active;
                   ==>

Branches:

-1-	Status	Tests
1	Covered	T4,T5,T6
0	Covered	T4,T5,T6

---

Assert Coverage for Instance : tb.dut.u_sysrst_ctrl_combo.gen_combo_trigger[2].u_sysrst_ctrl_detect

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	15	15	100.00	15	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	15	15	100.00	15	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
CntClr_A	9770838	760	0	0
CntIncr_A	9770838	44605	0	0
CntNoWrap_A	9770838	9328385	0	0
DetectStDropOut_A	9770838	59	0	0
DetectedOut_A	9770838	13305	0	0
DetectedPulseOut_A	9770838	296	0	0
DisabledIdleSt_A	9770838	8987687	0	0
DisabledNoDetection_A	9770838	8988897	0	0
EnterDebounceSt_A	9770838	401	0	0
EnterDetectSt_A	9770838	359	0	0
EnterStableSt_A	9770838	296	0	0
PulseIsPulse_A	9770838	296	0	0
StayInStableSt	9770838	12987	0	0
gen_high_level_sva.HighLevelEvent_A	9770838	9330998	0	0
gen_not_sticky_sva.StableStDropOut_A	9770838	272	0	0

CntClr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	760	0	0
T10	8125	8	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	4	0	0
T21	0	2	0	0
T34	0	6	0	0
T41	0	8	0	0
T42	0	4	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	8	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	6	0	0
T97	0	6	0	0
T244	0	8	0	0

CntIncr_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	44605	0	0
T10	8125	218	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	64	0	0
T21	0	171	0	0
T34	0	486	0	0
T41	0	496	0	0
T42	0	142	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	250	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	516	0	0
T97	0	276	0	0
T244	0	620	0	0

CntNoWrap_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9328385	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DetectStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	59	0	0
T43	35323	7	0	0
T101	2586	0	0	0
T116	0	4	0	0
T164	3081	0	0	0
T165	523	0	0	0
T166	415	0	0	0
T167	704	0	0	0
T168	35514	0	0	0
T219	871	0	0	0
T220	402	0	0	0
T221	2841	0	0	0
T258	0	1	0	0
T284	0	8	0	0
T285	0	2	0	0
T286	0	6	0	0
T287	0	2	0	0
T288	0	1	0	0
T289	0	7	0	0
T290	0	6	0	0

DetectedOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	13305	0	0
T10	8125	105	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	140	0	0
T21	0	4	0	0
T34	0	15	0	0
T41	0	203	0	0
T42	0	107	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	78	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	29	0	0
T97	0	82	0	0
T244	0	53	0	0

DetectedPulseOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	296	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	2	0	0
T21	0	1	0	0
T34	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	1	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	3	0	0
T97	0	3	0	0
T244	0	4	0	0

DisabledIdleSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8987687	0	0
T1	1054	653	0	0
T2	644	243	0	0
T4	428	27	0	0
T5	469	68	0	0
T6	427	26	0	0
T14	522	121	0	0
T15	502	101	0	0
T22	444	43	0	0
T23	491	90	0	0
T24	657	256	0	0

DisabledNoDetection_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	8988897	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

EnterDebounceSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	401	0	0
T10	8125	5	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	2	0	0
T21	0	1	0	0
T34	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	5	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	3	0	0
T97	0	3	0	0
T244	0	4	0	0

EnterDetectSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	359	0	0
T10	8125	3	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	2	0	0
T21	0	1	0	0
T34	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	3	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	3	0	0
T97	0	3	0	0
T244	0	4	0	0

EnterStableSt_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	296	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	2	0	0
T21	0	1	0	0
T34	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	1	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	3	0	0
T97	0	3	0	0
T244	0	4	0	0

PulseIsPulse_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	296	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	2	0	0
T21	0	1	0	0
T34	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	1	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	3	0	0
T97	0	3	0	0
T244	0	4	0	0

StayInStableSt

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	12987	0	0
T10	8125	104	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	138	0	0
T21	0	3	0	0
T34	0	12	0	0
T41	0	199	0	0
T42	0	105	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T90	0	77	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	26	0	0
T97	0	79	0	0
T244	0	49	0	0

gen_high_level_sva.HighLevelEvent_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	9330998	0	0
T1	1054	654	0	0
T2	644	244	0	0
T4	428	28	0	0
T5	469	69	0	0
T6	427	27	0	0
T14	522	122	0	0
T15	502	102	0	0
T22	444	44	0	0
T23	491	91	0	0
T24	657	257	0	0

gen_not_sticky_sva.StableStDropOut_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	9770838	272	0	0
T10	8125	1	0	0
T11	783	0	0	0
T12	632	0	0	0
T13	10538	2	0	0
T21	0	1	0	0
T34	0	3	0	0
T41	0	4	0	0
T42	0	2	0	0
T58	470	0	0	0
T65	522	0	0	0
T66	503	0	0	0
T67	677	0	0	0
T94	427	0	0	0
T95	1341	0	0	0
T96	0	3	0	0
T97	0	3	0	0
T168	0	4	0	0
T244	0	4	0	0