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:       T3 T4 T5 
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:       T1 T2 T3 
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 | T3,T4,T5 | 
| 0 | 1 | Covered | T13,T14,T15 | 
| 1 | 0 | Covered | T13,T14,T15 | 
| 1 | 1 | Covered | T13,T14,T15 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T13,T14,T15 | 
| 1 | 0 | Covered | T13,T14,T15 | 
| 1 | 1 | Covered | T13,T14,T15 | 
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 | 
T3,T4,T5 | 
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
Assertion Details
DstPulseCheck_A
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
1305036459 | 
2874 | 
0 | 
0 | 
| T13 | 
231962 | 
7 | 
0 | 
0 | 
| T14 | 
402146 | 
12 | 
0 | 
0 | 
| T15 | 
871521 | 
5 | 
0 | 
0 | 
| T16 | 
22914 | 
0 | 
0 | 
0 | 
| T17 | 
1094433 | 
9 | 
0 | 
0 | 
| T23 | 
2976 | 
0 | 
0 | 
0 | 
| T24 | 
4800 | 
0 | 
0 | 
0 | 
| T25 | 
37158 | 
0 | 
0 | 
0 | 
| T26 | 
19284 | 
0 | 
0 | 
0 | 
| T27 | 
1245114 | 
0 | 
0 | 
0 | 
| T34 | 
34121 | 
0 | 
0 | 
0 | 
| T35 | 
6626 | 
0 | 
0 | 
0 | 
| T39 | 
0 | 
2 | 
0 | 
0 | 
| T40 | 
0 | 
6 | 
0 | 
0 | 
| T43 | 
0 | 
5 | 
0 | 
0 | 
| T45 | 
0 | 
7 | 
0 | 
0 | 
| T46 | 
0 | 
4 | 
0 | 
0 | 
| T72 | 
0 | 
6 | 
0 | 
0 | 
| T73 | 
0 | 
12 | 
0 | 
0 | 
| T74 | 
0 | 
7 | 
0 | 
0 | 
| T75 | 
0 | 
2 | 
0 | 
0 | 
| T78 | 
0 | 
7 | 
0 | 
0 | 
| T117 | 
0 | 
10 | 
0 | 
0 | 
| T145 | 
0 | 
10 | 
0 | 
0 | 
| T146 | 
0 | 
7 | 
0 | 
0 | 
| T147 | 
0 | 
7 | 
0 | 
0 | 
| T148 | 
0 | 
7 | 
0 | 
0 | 
| T149 | 
0 | 
2 | 
0 | 
0 | 
| T150 | 
0 | 
2 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
454795986 | 
2874 | 
0 | 
0 | 
| T13 | 
32266 | 
7 | 
0 | 
0 | 
| T14 | 
131746 | 
12 | 
0 | 
0 | 
| T15 | 
747936 | 
5 | 
0 | 
0 | 
| T17 | 
942348 | 
9 | 
0 | 
0 | 
| T25 | 
3906 | 
0 | 
0 | 
0 | 
| T26 | 
7560 | 
0 | 
0 | 
0 | 
| T27 | 
248712 | 
0 | 
0 | 
0 | 
| T34 | 
46734 | 
0 | 
0 | 
0 | 
| T35 | 
24768 | 
0 | 
0 | 
0 | 
| T36 | 
67272 | 
0 | 
0 | 
0 | 
| T39 | 
0 | 
2 | 
0 | 
0 | 
| T40 | 
0 | 
6 | 
0 | 
0 | 
| T43 | 
0 | 
5 | 
0 | 
0 | 
| T45 | 
0 | 
7 | 
0 | 
0 | 
| T46 | 
0 | 
4 | 
0 | 
0 | 
| T49 | 
17836 | 
0 | 
0 | 
0 | 
| T58 | 
31936 | 
0 | 
0 | 
0 | 
| T72 | 
0 | 
6 | 
0 | 
0 | 
| T73 | 
0 | 
12 | 
0 | 
0 | 
| T74 | 
0 | 
7 | 
0 | 
0 | 
| T75 | 
0 | 
2 | 
0 | 
0 | 
| T78 | 
0 | 
7 | 
0 | 
0 | 
| T117 | 
0 | 
10 | 
0 | 
0 | 
| T145 | 
0 | 
10 | 
0 | 
0 | 
| T146 | 
0 | 
7 | 
0 | 
0 | 
| T147 | 
0 | 
7 | 
0 | 
0 | 
| T148 | 
0 | 
7 | 
0 | 
0 | 
| T149 | 
0 | 
2 | 
0 | 
0 | 
| T150 | 
0 | 
2 | 
0 | 
0 | 
 
Line Coverage for Instance : tb.dut.u_flash_readbuf_watermark_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:       T3 T4 T5 
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:       T1 T2 T3 
Cond Coverage for Instance : tb.dut.u_flash_readbuf_watermark_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 | T3,T4,T5 | 
| 0 | 1 | Covered | T13,T14,T45 | 
| 1 | 0 | Covered | T13,T14,T45 | 
| 1 | 1 | Covered | T13,T14,T45 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T13,T14,T45 | 
| 1 | 0 | Covered | T13,T14,T45 | 
| 1 | 1 | Covered | T13,T14,T45 | 
Branch Coverage for Instance : tb.dut.u_flash_readbuf_watermark_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 | 
T3,T4,T5 | 
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 Instance : tb.dut.u_flash_readbuf_watermark_pulse_sync
Assertion Details
DstPulseCheck_A
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
435012153 | 
175 | 
0 | 
0 | 
| T13 | 
115981 | 
2 | 
0 | 
0 | 
| T14 | 
201073 | 
6 | 
0 | 
0 | 
| T15 | 
290507 | 
0 | 
0 | 
0 | 
| T16 | 
7638 | 
0 | 
0 | 
0 | 
| T17 | 
364811 | 
0 | 
0 | 
0 | 
| T23 | 
992 | 
0 | 
0 | 
0 | 
| T24 | 
1600 | 
0 | 
0 | 
0 | 
| T25 | 
12386 | 
0 | 
0 | 
0 | 
| T26 | 
6428 | 
0 | 
0 | 
0 | 
| T27 | 
415038 | 
0 | 
0 | 
0 | 
| T45 | 
0 | 
2 | 
0 | 
0 | 
| T78 | 
0 | 
2 | 
0 | 
0 | 
| T117 | 
0 | 
5 | 
0 | 
0 | 
| T145 | 
0 | 
5 | 
0 | 
0 | 
| T146 | 
0 | 
2 | 
0 | 
0 | 
| T147 | 
0 | 
2 | 
0 | 
0 | 
| T148 | 
0 | 
2 | 
0 | 
0 | 
| T150 | 
0 | 
2 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
151598662 | 
175 | 
0 | 
0 | 
| T13 | 
16133 | 
2 | 
0 | 
0 | 
| T14 | 
65873 | 
6 | 
0 | 
0 | 
| T15 | 
249312 | 
0 | 
0 | 
0 | 
| T17 | 
314116 | 
0 | 
0 | 
0 | 
| T25 | 
1302 | 
0 | 
0 | 
0 | 
| T26 | 
2520 | 
0 | 
0 | 
0 | 
| T27 | 
82904 | 
0 | 
0 | 
0 | 
| T34 | 
15578 | 
0 | 
0 | 
0 | 
| T35 | 
8256 | 
0 | 
0 | 
0 | 
| T36 | 
22424 | 
0 | 
0 | 
0 | 
| T45 | 
0 | 
2 | 
0 | 
0 | 
| T78 | 
0 | 
2 | 
0 | 
0 | 
| T117 | 
0 | 
5 | 
0 | 
0 | 
| T145 | 
0 | 
5 | 
0 | 
0 | 
| T146 | 
0 | 
2 | 
0 | 
0 | 
| T147 | 
0 | 
2 | 
0 | 
0 | 
| T148 | 
0 | 
2 | 
0 | 
0 | 
| T150 | 
0 | 
2 | 
0 | 
0 | 
 
Line Coverage for Instance : tb.dut.u_flash_readbuf_flip_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:       T3 T4 T5 
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:       T1 T2 T3 
Cond Coverage for Instance : tb.dut.u_flash_readbuf_flip_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 | T3,T4,T5 | 
| 0 | 1 | Covered | T13,T14,T45 | 
| 1 | 0 | Covered | T13,T14,T45 | 
| 1 | 1 | Covered | T13,T14,T45 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T13,T14,T45 | 
| 1 | 0 | Covered | T13,T14,T45 | 
| 1 | 1 | Covered | T13,T14,T45 | 
Branch Coverage for Instance : tb.dut.u_flash_readbuf_flip_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 | 
T3,T4,T5 | 
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 Instance : tb.dut.u_flash_readbuf_flip_pulse_sync
Assertion Details
DstPulseCheck_A
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
435012153 | 
328 | 
0 | 
0 | 
| T13 | 
115981 | 
5 | 
0 | 
0 | 
| T14 | 
201073 | 
6 | 
0 | 
0 | 
| T15 | 
290507 | 
0 | 
0 | 
0 | 
| T16 | 
7638 | 
0 | 
0 | 
0 | 
| T17 | 
364811 | 
0 | 
0 | 
0 | 
| T23 | 
992 | 
0 | 
0 | 
0 | 
| T24 | 
1600 | 
0 | 
0 | 
0 | 
| T25 | 
12386 | 
0 | 
0 | 
0 | 
| T26 | 
6428 | 
0 | 
0 | 
0 | 
| T27 | 
415038 | 
0 | 
0 | 
0 | 
| T45 | 
0 | 
5 | 
0 | 
0 | 
| T78 | 
0 | 
5 | 
0 | 
0 | 
| T117 | 
0 | 
5 | 
0 | 
0 | 
| T145 | 
0 | 
5 | 
0 | 
0 | 
| T146 | 
0 | 
5 | 
0 | 
0 | 
| T147 | 
0 | 
5 | 
0 | 
0 | 
| T148 | 
0 | 
5 | 
0 | 
0 | 
| T149 | 
0 | 
2 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
151598662 | 
328 | 
0 | 
0 | 
| T13 | 
16133 | 
5 | 
0 | 
0 | 
| T14 | 
65873 | 
6 | 
0 | 
0 | 
| T15 | 
249312 | 
0 | 
0 | 
0 | 
| T17 | 
314116 | 
0 | 
0 | 
0 | 
| T25 | 
1302 | 
0 | 
0 | 
0 | 
| T26 | 
2520 | 
0 | 
0 | 
0 | 
| T27 | 
82904 | 
0 | 
0 | 
0 | 
| T34 | 
15578 | 
0 | 
0 | 
0 | 
| T35 | 
8256 | 
0 | 
0 | 
0 | 
| T36 | 
22424 | 
0 | 
0 | 
0 | 
| T45 | 
0 | 
5 | 
0 | 
0 | 
| T78 | 
0 | 
5 | 
0 | 
0 | 
| T117 | 
0 | 
5 | 
0 | 
0 | 
| T145 | 
0 | 
5 | 
0 | 
0 | 
| T146 | 
0 | 
5 | 
0 | 
0 | 
| T147 | 
0 | 
5 | 
0 | 
0 | 
| T148 | 
0 | 
5 | 
0 | 
0 | 
| T149 | 
0 | 
2 | 
0 | 
0 | 
 
Line Coverage for Instance : tb.dut.u_upload.u_payloadptr_clr_psync
 | 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:       T3 T4 T5 
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:       T1 T2 T3 
Cond Coverage for Instance : tb.dut.u_upload.u_payloadptr_clr_psync
 | 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 | T3,T4,T5 | 
| 0 | 1 | Covered | T15,T17,T46 | 
| 1 | 0 | Covered | T15,T17,T46 | 
| 1 | 1 | Covered | T15,T17,T46 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T15,T17,T46 | 
| 1 | 0 | Covered | T15,T17,T46 | 
| 1 | 1 | Covered | T15,T17,T46 | 
Branch Coverage for Instance : tb.dut.u_upload.u_payloadptr_clr_psync
 | 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 | 
T3,T4,T5 | 
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 Instance : tb.dut.u_upload.u_payloadptr_clr_psync
Assertion Details
DstPulseCheck_A
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
435012153 | 
2371 | 
0 | 
0 | 
| T15 | 
290507 | 
5 | 
0 | 
0 | 
| T16 | 
7638 | 
0 | 
0 | 
0 | 
| T17 | 
364811 | 
9 | 
0 | 
0 | 
| T23 | 
992 | 
0 | 
0 | 
0 | 
| T24 | 
1600 | 
0 | 
0 | 
0 | 
| T25 | 
12386 | 
0 | 
0 | 
0 | 
| T26 | 
6428 | 
0 | 
0 | 
0 | 
| T27 | 
415038 | 
0 | 
0 | 
0 | 
| T34 | 
34121 | 
0 | 
0 | 
0 | 
| T35 | 
6626 | 
0 | 
0 | 
0 | 
| T39 | 
0 | 
2 | 
0 | 
0 | 
| T40 | 
0 | 
6 | 
0 | 
0 | 
| T43 | 
0 | 
5 | 
0 | 
0 | 
| T46 | 
0 | 
4 | 
0 | 
0 | 
| T72 | 
0 | 
6 | 
0 | 
0 | 
| T73 | 
0 | 
12 | 
0 | 
0 | 
| T74 | 
0 | 
7 | 
0 | 
0 | 
| T75 | 
0 | 
2 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
151598662 | 
2371 | 
0 | 
0 | 
| T15 | 
249312 | 
5 | 
0 | 
0 | 
| T17 | 
314116 | 
9 | 
0 | 
0 | 
| T25 | 
1302 | 
0 | 
0 | 
0 | 
| T26 | 
2520 | 
0 | 
0 | 
0 | 
| T27 | 
82904 | 
0 | 
0 | 
0 | 
| T34 | 
15578 | 
0 | 
0 | 
0 | 
| T35 | 
8256 | 
0 | 
0 | 
0 | 
| T36 | 
22424 | 
0 | 
0 | 
0 | 
| T39 | 
0 | 
2 | 
0 | 
0 | 
| T40 | 
0 | 
6 | 
0 | 
0 | 
| T43 | 
0 | 
5 | 
0 | 
0 | 
| T46 | 
0 | 
4 | 
0 | 
0 | 
| T49 | 
17836 | 
0 | 
0 | 
0 | 
| T58 | 
31936 | 
0 | 
0 | 
0 | 
| T72 | 
0 | 
6 | 
0 | 
0 | 
| T73 | 
0 | 
12 | 
0 | 
0 | 
| T74 | 
0 | 
7 | 
0 | 
0 | 
| T75 | 
0 | 
2 | 
0 | 
0 |