Unified Coverage Report :: Module :: prim_pulse_sync

Module : prim_pulse_sync

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

Source File(s) :
/workspaces/repo/scratch/os_regression_2024_10_08/chip_earlgrey_asic-sim-vcs/default/sim-vcs/../src/lowrisc_prim_all_0.1/rtl/prim_pulse_sync.sv

Module self-instances :

NAME	SCORE	LINE	COND	TOGGLE	FSM	BRANCH	ASSERT
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_0_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_0_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_1_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_1_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_2_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_2_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_3_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_3_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_4_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_4_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_5_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_5_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_6_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_6_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_7_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_en_7_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_0_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_0_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_1_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_1_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_2_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_2_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_3_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_3_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_4_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_4_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_5_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_5_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_6_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_6_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_7_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_7_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_0_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_0_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_1_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_1_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_2_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_2_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_3_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_3_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_4_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_4_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_5_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_5_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_6_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_6_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_7_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_detector_cnt_th_7_cdc.u_arb.gen_passthru.u_dst_to_src_ack	100.00	100.00	100.00			100.00	100.00
tb.dut.top_earlgrey.u_pinmux_aon.u_reg.u_wkup_cause_cdc.u_src_to_dst_req	100.00	100.00	100.00			100.00	100.00

Line Coverage for Module : prim_pulse_sync

	Line No.	Total	Covered	Percent
TOTAL		7	7	100.00
ALWAYS	31	3	3	100.00
CONT_ASSIGN	49	0	0
CONT_ASSIGN	52	0	0
ALWAYS	55	0	0
ALWAYS	89	3	3	100.00
CONT_ASSIGN	97	1	1	100.00

30                        always_ff @(posedge clk_src_i or negedge rst_src_ni) begin
31         1/1              if (!rst_src_ni) begin
           Tests:       T1 T2 T3 
32         1/1                src_level <= 1'b0;
           Tests:       T1 T2 T3 
33                          end else begin
34         1/1                src_level <= src_level ^ src_pulse_i;
           Tests:       T1 T2 T3 
35                          end
36                        end
37                      
38                      
39                        // source active must come far enough such that the destination domain has time
40                        // to create a valid pulse.
41                      `ifdef INC_ASSERT
42                        //VCS coverage off
43                        // pragma coverage off
44                      
45                        // source active flag tracks whether there is an ongoing "toggle" event.
46                        // Until this toggle event is accepted by the destination domain (negative edge of
47                        // of the pulse output), the source side cannot toggle again.
48                        logic effective_rst_n;
49         unreachable    assign effective_rst_n = rst_src_ni && dst_pulse_o;
50                      
51                        logic src_active_flag_d, src_active_flag_q;
52         unreachable    assign src_active_flag_d = src_pulse_i || src_active_flag_q;
53                      
54                        always_ff @(posedge clk_src_i or negedge effective_rst_n) begin
55         unreachable      if (!effective_rst_n) begin
56         unreachable        src_active_flag_q <= '0;
57                          end else begin
58         unreachable        src_active_flag_q <= src_active_flag_d;
59                          end
60                        end
61                      
62                        //VCS coverage on
63                        // pragma coverage on
64                      
65                        `ASSERT(SrcPulseCheck_M, src_pulse_i |-> !src_active_flag_q, clk_src_i, !rst_src_ni)
66                      `endif
67                      
68                        //////////////////////////////////////////////////////////
69                        // synchronize level signal to destination clock domain //
70                        //////////////////////////////////////////////////////////
71                        logic dst_level;
72                      
73                        prim_flop_2sync #(.Width(1)) prim_flop_2sync (
74                          // source clock domain
75                          .d_i    (src_level),
76                          // destination clock domain
77                          .clk_i  (clk_dst_i),
78                          .rst_ni (rst_dst_ni),
79                          .q_o    (dst_level)
80                        );
81                      
82                        ////////////////////////////////////////
83                        // convert level signal back to pulse //
84                        ////////////////////////////////////////
85                        logic dst_level_q;
86                      
87                        // delay dst_level by 1 cycle
88                        always_ff @(posedge clk_dst_i or negedge rst_dst_ni) begin
89         1/1              if (!rst_dst_ni) begin
           Tests:       T1 T2 T3 
90         1/1                dst_level_q <= 1'b0;
           Tests:       T1 T2 T3 
91                          end else begin
92         1/1                dst_level_q <= dst_level;
           Tests:       T1 T2 T3 
93                          end
94                        end
95                      
96                        // edge detection
97         1/1            assign dst_pulse_o = dst_level_q ^ dst_level;
           Tests:       T6 T25 T29 

---

Cond Coverage for Module : prim_pulse_sync

	Total	Covered	Percent
Conditions	8	8	100.00
Logical	8	8	100.00
Non-Logical	0	0
Event	0	0

 LINE       34
 EXPRESSION (src_level ^ src_pulse_i)
             ----1----   -----2-----

-1-	-2-	Status	Tests
0	0	Covered	T1,T2,T3
0	1	Covered	T6,T25,T29
1	0	Covered	T6,T25,T29
1	1	Covered	T6,T25,T29

 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----

-1-	-2-	Status	Tests
0	0	Covered	T1,T2,T3
0	1	Covered	T6,T25,T29
1	0	Covered	T6,T25,T29
1	1	Covered	T6,T25,T29

---

Branch Coverage for Module : prim_pulse_sync

	Line No.	Total	Covered	Percent
Branches		4	4	100.00
IF	31	2	2	100.00
IF	89	2	2	100.00

31             if (!rst_src_ni) begin
               -1-  
32               src_level <= 1'b0;
                 ==>
33             end else begin
34               src_level <= src_level ^ src_pulse_i;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

89             if (!rst_dst_ni) begin
               -1-  
90               dst_level_q <= 1'b0;
                 ==>
91             end else begin
92               dst_level_q <= dst_level;
                 ==>

Branches:

-1-	Status	Tests
1	Covered	T1,T2,T3
0	Covered	T1,T2,T3

---

Assert Coverage for Module : prim_pulse_sync

	Total	Attempted	Percent	Succeeded/Matched	Percent
Assertions	2	2	100.00	2	100.00
Cover properties	0	0		0
Cover sequences	0	0		0
Total	2	2	100.00	2	100.00

---

Assertion Details

Name	Attempts	Real Successes	Failures	Incomplete
DstPulseCheck_A	2147483647	15403	0	0
SrcPulseCheck_M	2147483647	15417	0	0

DstPulseCheck_A

Name	Attempts	Real Successes	Failures	Incomplete
Total	2147483647	15403	0	0
T6	36811	7	0	0
T8	44213	0	0	0
T9	50255	0	0	0
T13	32095	0	0	0
T25	28432	2	0	0
T26	36091	0	0	0
T29	37626	5	0	0
T32	55409	0	0	0
T35	20776	0	0	0
T46	56133	0	0	0
T73	54692	0	0	0
T74	247505	4	0	0
T76	0	6	0	0
T77	0	2	0	0
T78	0	4	0	0
T79	0	2	0	0
T83	0	2	0	0
T84	0	7	0	0
T85	0	4	0	0
T127	0	2	0	0
T129	162461	4	0	0
T180	0	3	0	0
T407	0	3	0	0
T408	0	1	0	0
T421	0	1	0	0
T433	0	1	0	0
T434	0	1	0	0
T435	0	1	0	0
T436	0	1	0	0
T437	11540	0	0	0
T438	17965	0	0	0
T439	46070	0	0	0
T440	17465	0	0	0
T441	129054	0	0	0
T442	23895	0	0	0
T443	47313	0	0	0
T444	19644	0	0	0

SrcPulseCheck_M

Name	Attempts	Real Successes	Failures	Incomplete
Total	2147483647	15417	0	0
T6	72242	7	0	0
T8	86557	0	0	0
T9	98707	0	0	0
T13	62930	0	0	0
T25	55259	2	0	0
T26	926	0	0	0
T29	73239	6	0	0
T32	108856	0	0	0
T35	40436	0	0	0
T46	109884	0	0	0
T73	107398	0	0	0
T74	247505	4	0	0
T76	0	7	0	0
T77	0	2	0	0
T78	0	4	0	0
T79	0	2	0	0
T83	0	2	0	0
T84	0	7	0	0
T85	0	4	0	0
T127	0	2	0	0
T129	162461	4	0	0
T180	0	3	0	0
T407	0	3	0	0
T408	0	1	0	0
T421	0	1	0	0
T433	0	1	0	0
T434	0	1	0	0
T435	0	1	0	0
T436	0	1	0	0
T437	11540	0	0	0
T438	17965	0	0	0
T439	46070	0	0	0
T440	17465	0	0	0
T441	129054	0	0	0
T442	23895	0	0	0
T443	47313	0	0	0
T444	19644	0	0	0