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:       T4 T5 T7 
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 | T4,T5,T7 | 
| 0 | 1 | Covered | T16,T17,T23 | 
| 1 | 0 | Covered | T16,T17,T23 | 
| 1 | 1 | Covered | T16,T17,T23 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T16,T17,T23 | 
| 1 | 0 | Covered | T16,T17,T23 | 
| 1 | 1 | Covered | T16,T17,T23 | 
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 | 
T4,T5,T7 | 
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 | 
1293752127 | 
2828 | 
0 | 
0 | 
| T16 | 
7850 | 
2 | 
0 | 
0 | 
| T17 | 
320586 | 
7 | 
0 | 
0 | 
| T18 | 
24855 | 
0 | 
0 | 
0 | 
| T19 | 
19515 | 
0 | 
0 | 
0 | 
| T20 | 
70356 | 
0 | 
0 | 
0 | 
| T21 | 
156882 | 
0 | 
0 | 
0 | 
| T22 | 
37503 | 
0 | 
0 | 
0 | 
| T23 | 
0 | 
17 | 
0 | 
0 | 
| T24 | 
0 | 
3 | 
0 | 
0 | 
| T27 | 
36519 | 
0 | 
0 | 
0 | 
| T31 | 
12028 | 
0 | 
0 | 
0 | 
| T38 | 
0 | 
10 | 
0 | 
0 | 
| T40 | 
9033 | 
0 | 
0 | 
0 | 
| T41 | 
0 | 
7 | 
0 | 
0 | 
| T52 | 
0 | 
2 | 
0 | 
0 | 
| T57 | 
0 | 
2 | 
0 | 
0 | 
| T58 | 
0 | 
5 | 
0 | 
0 | 
| T59 | 
0 | 
7 | 
0 | 
0 | 
| T60 | 
0 | 
3 | 
0 | 
0 | 
| T61 | 
0 | 
6 | 
0 | 
0 | 
| T66 | 
0 | 
3 | 
0 | 
0 | 
| T74 | 
0 | 
1 | 
0 | 
0 | 
| T82 | 
0 | 
7 | 
0 | 
0 | 
| T84 | 
0 | 
7 | 
0 | 
0 | 
| T85 | 
0 | 
2 | 
0 | 
0 | 
| T104 | 
0 | 
3 | 
0 | 
0 | 
| T112 | 
2634 | 
0 | 
0 | 
0 | 
| T182 | 
0 | 
7 | 
0 | 
0 | 
| T183 | 
0 | 
7 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
440634885 | 
2828 | 
0 | 
0 | 
| T16 | 
10336 | 
2 | 
0 | 
0 | 
| T17 | 
44400 | 
7 | 
0 | 
0 | 
| T18 | 
4224 | 
0 | 
0 | 
0 | 
| T19 | 
2160 | 
0 | 
0 | 
0 | 
| T20 | 
12336 | 
0 | 
0 | 
0 | 
| T21 | 
18528 | 
0 | 
0 | 
0 | 
| T22 | 
76551 | 
0 | 
0 | 
0 | 
| T23 | 
161133 | 
17 | 
0 | 
0 | 
| T24 | 
92142 | 
3 | 
0 | 
0 | 
| T25 | 
4864 | 
0 | 
0 | 
0 | 
| T27 | 
6432 | 
0 | 
0 | 
0 | 
| T38 | 
0 | 
10 | 
0 | 
0 | 
| T41 | 
0 | 
7 | 
0 | 
0 | 
| T52 | 
0 | 
2 | 
0 | 
0 | 
| T57 | 
0 | 
2 | 
0 | 
0 | 
| T58 | 
0 | 
5 | 
0 | 
0 | 
| T59 | 
0 | 
7 | 
0 | 
0 | 
| T60 | 
0 | 
3 | 
0 | 
0 | 
| T61 | 
0 | 
6 | 
0 | 
0 | 
| T66 | 
0 | 
3 | 
0 | 
0 | 
| T74 | 
0 | 
1 | 
0 | 
0 | 
| T82 | 
0 | 
7 | 
0 | 
0 | 
| T84 | 
0 | 
7 | 
0 | 
0 | 
| T85 | 
0 | 
2 | 
0 | 
0 | 
| T104 | 
0 | 
3 | 
0 | 
0 | 
| T182 | 
0 | 
7 | 
0 | 
0 | 
| T183 | 
0 | 
7 | 
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:       T4 T5 T7 
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 | T4,T5,T7 | 
| 0 | 1 | Covered | T17,T23,T41 | 
| 1 | 0 | Covered | T17,T23,T41 | 
| 1 | 1 | Covered | T17,T23,T41 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T17,T23,T41 | 
| 1 | 0 | Covered | T17,T23,T41 | 
| 1 | 1 | Covered | T17,T23,T41 | 
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 | 
T4,T5,T7 | 
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 | 
431250709 | 
190 | 
0 | 
0 | 
| T17 | 
106862 | 
2 | 
0 | 
0 | 
| T18 | 
8285 | 
0 | 
0 | 
0 | 
| T19 | 
6505 | 
0 | 
0 | 
0 | 
| T20 | 
23452 | 
0 | 
0 | 
0 | 
| T21 | 
52294 | 
0 | 
0 | 
0 | 
| T22 | 
12501 | 
0 | 
0 | 
0 | 
| T23 | 
0 | 
9 | 
0 | 
0 | 
| T27 | 
12173 | 
0 | 
0 | 
0 | 
| T31 | 
6014 | 
0 | 
0 | 
0 | 
| T40 | 
3011 | 
0 | 
0 | 
0 | 
| T41 | 
0 | 
2 | 
0 | 
0 | 
| T59 | 
0 | 
4 | 
0 | 
0 | 
| T60 | 
0 | 
2 | 
0 | 
0 | 
| T82 | 
0 | 
2 | 
0 | 
0 | 
| T84 | 
0 | 
2 | 
0 | 
0 | 
| T85 | 
0 | 
1 | 
0 | 
0 | 
| T112 | 
878 | 
0 | 
0 | 
0 | 
| T182 | 
0 | 
2 | 
0 | 
0 | 
| T183 | 
0 | 
2 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
146878295 | 
190 | 
0 | 
0 | 
| T17 | 
14800 | 
2 | 
0 | 
0 | 
| T18 | 
1408 | 
0 | 
0 | 
0 | 
| T19 | 
720 | 
0 | 
0 | 
0 | 
| T20 | 
4112 | 
0 | 
0 | 
0 | 
| T21 | 
6176 | 
0 | 
0 | 
0 | 
| T22 | 
25517 | 
0 | 
0 | 
0 | 
| T23 | 
53711 | 
9 | 
0 | 
0 | 
| T24 | 
30714 | 
0 | 
0 | 
0 | 
| T25 | 
2432 | 
0 | 
0 | 
0 | 
| T27 | 
2144 | 
0 | 
0 | 
0 | 
| T41 | 
0 | 
2 | 
0 | 
0 | 
| T59 | 
0 | 
4 | 
0 | 
0 | 
| T60 | 
0 | 
2 | 
0 | 
0 | 
| T82 | 
0 | 
2 | 
0 | 
0 | 
| T84 | 
0 | 
2 | 
0 | 
0 | 
| T85 | 
0 | 
1 | 
0 | 
0 | 
| T182 | 
0 | 
2 | 
0 | 
0 | 
| T183 | 
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:       T4 T5 T7 
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 | T4,T5,T7 | 
| 0 | 1 | Covered | T17,T23,T41 | 
| 1 | 0 | Covered | T17,T23,T41 | 
| 1 | 1 | Covered | T17,T23,T41 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T17,T23,T41 | 
| 1 | 0 | Covered | T17,T23,T41 | 
| 1 | 1 | Covered | T17,T23,T41 | 
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 | 
T4,T5,T7 | 
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 | 
431250709 | 
335 | 
0 | 
0 | 
| T17 | 
106862 | 
5 | 
0 | 
0 | 
| T18 | 
8285 | 
0 | 
0 | 
0 | 
| T19 | 
6505 | 
0 | 
0 | 
0 | 
| T20 | 
23452 | 
0 | 
0 | 
0 | 
| T21 | 
52294 | 
0 | 
0 | 
0 | 
| T22 | 
12501 | 
0 | 
0 | 
0 | 
| T23 | 
0 | 
8 | 
0 | 
0 | 
| T27 | 
12173 | 
0 | 
0 | 
0 | 
| T31 | 
6014 | 
0 | 
0 | 
0 | 
| T40 | 
3011 | 
0 | 
0 | 
0 | 
| T41 | 
0 | 
5 | 
0 | 
0 | 
| T59 | 
0 | 
3 | 
0 | 
0 | 
| T60 | 
0 | 
1 | 
0 | 
0 | 
| T82 | 
0 | 
5 | 
0 | 
0 | 
| T84 | 
0 | 
5 | 
0 | 
0 | 
| T85 | 
0 | 
1 | 
0 | 
0 | 
| T112 | 
878 | 
0 | 
0 | 
0 | 
| T182 | 
0 | 
5 | 
0 | 
0 | 
| T183 | 
0 | 
5 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
146878295 | 
335 | 
0 | 
0 | 
| T17 | 
14800 | 
5 | 
0 | 
0 | 
| T18 | 
1408 | 
0 | 
0 | 
0 | 
| T19 | 
720 | 
0 | 
0 | 
0 | 
| T20 | 
4112 | 
0 | 
0 | 
0 | 
| T21 | 
6176 | 
0 | 
0 | 
0 | 
| T22 | 
25517 | 
0 | 
0 | 
0 | 
| T23 | 
53711 | 
8 | 
0 | 
0 | 
| T24 | 
30714 | 
0 | 
0 | 
0 | 
| T25 | 
2432 | 
0 | 
0 | 
0 | 
| T27 | 
2144 | 
0 | 
0 | 
0 | 
| T41 | 
0 | 
5 | 
0 | 
0 | 
| T59 | 
0 | 
3 | 
0 | 
0 | 
| T60 | 
0 | 
1 | 
0 | 
0 | 
| T82 | 
0 | 
5 | 
0 | 
0 | 
| T84 | 
0 | 
5 | 
0 | 
0 | 
| T85 | 
0 | 
1 | 
0 | 
0 | 
| T182 | 
0 | 
5 | 
0 | 
0 | 
| T183 | 
0 | 
5 | 
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:       T4 T5 T7 
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 | T4,T5,T7 | 
| 0 | 1 | Covered | T16,T24,T66 | 
| 1 | 0 | Covered | T16,T24,T66 | 
| 1 | 1 | Covered | T16,T24,T66 | 
 LINE       97
 EXPRESSION (dst_level_q ^ dst_level)
             -----1-----   ----2----
| -1- | -2- | Status | Tests |                       
| 0 | 0 | Covered | T1,T2,T3 | 
| 0 | 1 | Covered | T16,T24,T66 | 
| 1 | 0 | Covered | T16,T24,T66 | 
| 1 | 1 | Covered | T16,T24,T66 | 
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 | 
T4,T5,T7 | 
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 | 
431250709 | 
2303 | 
0 | 
0 | 
| T16 | 
7850 | 
2 | 
0 | 
0 | 
| T17 | 
106862 | 
0 | 
0 | 
0 | 
| T18 | 
8285 | 
0 | 
0 | 
0 | 
| T19 | 
6505 | 
0 | 
0 | 
0 | 
| T20 | 
23452 | 
0 | 
0 | 
0 | 
| T21 | 
52294 | 
0 | 
0 | 
0 | 
| T22 | 
12501 | 
0 | 
0 | 
0 | 
| T24 | 
0 | 
3 | 
0 | 
0 | 
| T27 | 
12173 | 
0 | 
0 | 
0 | 
| T38 | 
0 | 
10 | 
0 | 
0 | 
| T40 | 
3011 | 
0 | 
0 | 
0 | 
| T52 | 
0 | 
2 | 
0 | 
0 | 
| T57 | 
0 | 
2 | 
0 | 
0 | 
| T58 | 
0 | 
5 | 
0 | 
0 | 
| T61 | 
0 | 
6 | 
0 | 
0 | 
| T66 | 
0 | 
3 | 
0 | 
0 | 
| T74 | 
0 | 
1 | 
0 | 
0 | 
| T104 | 
0 | 
3 | 
0 | 
0 | 
| T112 | 
878 | 
0 | 
0 | 
0 | 
SrcPulseCheck_M
| Name | Attempts | Real Successes | Failures | Incomplete | 
| Total | 
146878295 | 
2303 | 
0 | 
0 | 
| T16 | 
10336 | 
2 | 
0 | 
0 | 
| T17 | 
14800 | 
0 | 
0 | 
0 | 
| T18 | 
1408 | 
0 | 
0 | 
0 | 
| T19 | 
720 | 
0 | 
0 | 
0 | 
| T20 | 
4112 | 
0 | 
0 | 
0 | 
| T21 | 
6176 | 
0 | 
0 | 
0 | 
| T22 | 
25517 | 
0 | 
0 | 
0 | 
| T23 | 
53711 | 
0 | 
0 | 
0 | 
| T24 | 
30714 | 
3 | 
0 | 
0 | 
| T27 | 
2144 | 
0 | 
0 | 
0 | 
| T38 | 
0 | 
10 | 
0 | 
0 | 
| T52 | 
0 | 
2 | 
0 | 
0 | 
| T57 | 
0 | 
2 | 
0 | 
0 | 
| T58 | 
0 | 
5 | 
0 | 
0 | 
| T61 | 
0 | 
6 | 
0 | 
0 | 
| T66 | 
0 | 
3 | 
0 | 
0 | 
| T74 | 
0 | 
1 | 
0 | 
0 | 
| T104 | 
0 | 
3 | 
0 | 
0 |