Synthesis Messages

Report Title GowinSynthesis Report
Design File C:\Users\24165\Desktop\acm2108_ddr3_CDC\src\rd_data_fifo\temp\FIFO\fifo_define.v
C:\Users\24165\Desktop\acm2108_ddr3_CDC\src\rd_data_fifo\temp\FIFO\fifo_parameter.v
D:\Gowin\Gowin_V1.9.12_x64\IDE\ipcore\FIFO\data\edc.v
D:\Gowin\Gowin_V1.9.12_x64\IDE\ipcore\FIFO\data\fifo.v
D:\Gowin\Gowin_V1.9.12_x64\IDE\ipcore\FIFO\data\fifo_top.v
GowinSynthesis Constraints File ---
Tool Version V1.9.12 (64-bit)
Part Number GW5AT-LV60PG484AC1/I0
Device GW5AT-60
Device Version B
Created Time Tue Oct 14 09:17:23 2025
Legal Announcement Copyright (C)2014-2025 Gowin Semiconductor Corporation. ALL rights reserved.

Synthesis Details

Top Level Module rd_data_fifo
Synthesis Process Running parser:
    CPU time = 0h 0m 0.265s, Elapsed time = 0h 0m 0.329s, Peak memory usage = 77.277MB
Running netlist conversion:
    CPU time = 0h 0m 0.015s, Elapsed time = 0h 0m 0.002s, Peak memory usage = 77.277MB
Running device independent optimization:
    Optimizing Phase 0: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.005s, Peak memory usage = 77.277MB
    Optimizing Phase 1: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.004s, Peak memory usage = 77.277MB
    Optimizing Phase 2: CPU time = 0h 0m 0.015s, Elapsed time = 0h 0m 0.011s, Peak memory usage = 77.277MB
Running inference:
    Inferring Phase 0: CPU time = 0h 0m 0.015s, Elapsed time = 0h 0m 0.008s, Peak memory usage = 77.277MB
    Inferring Phase 1: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0s, Peak memory usage = 77.277MB
    Inferring Phase 2: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.001s, Peak memory usage = 77.277MB
    Inferring Phase 3: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.001s, Peak memory usage = 77.277MB
Running technical mapping:
    Tech-Mapping Phase 0: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.009s, Peak memory usage = 77.277MB
    Tech-Mapping Phase 1: CPU time = 0h 0m 0.015s, Elapsed time = 0h 0m 0.002s, Peak memory usage = 77.277MB
    Tech-Mapping Phase 2: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.001s, Peak memory usage = 77.277MB
    Tech-Mapping Phase 3: CPU time = 0h 0m 0.906s, Elapsed time = 0h 0m 0.941s, Peak memory usage = 94.098MB
    Tech-Mapping Phase 4: CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.008s, Peak memory usage = 94.098MB
Generate output files:
    CPU time = 0h 0m 0s, Elapsed time = 0h 0m 0.021s, Peak memory usage = 94.098MB
Total Time and Memory Usage CPU time = 0h 0m 1s, Elapsed time = 0h 0m 1s, Peak memory usage = 94.098MB

Resource

Resource Usage Summary

Resource Usage
I/O Port 176
I/O Buf 176
    IBUF 133
    OBUF 43
Register 112
    DFFPE 6
    DFFCE 106
LUT 302
    LUT2 34
    LUT3 88
    LUT4 180
ALU 32
    ALU 32
INV 4
    INV 4
BSRAM 4
    SDPB 4

Resource Utilization Summary

Resource Usage Utilization
Logic 338(306 LUT, 32 ALU) / 59904 <1%
Register 112 / 60780 <1%
  --Register as Latch 0 / 60780 0%
  --Register as FF 112 / 60780 <1%
BSRAM 4 / 118 4%

Timing

Clock Summary:

NO. Clock Name Type Period Frequency(MHz) Rise Fall Source Master Object
1 RdClk Base 10.000 100.000 0.000 5.000 RdClk_ibuf/I
2 WrClk Base 10.000 100.000 0.000 5.000 WrClk_ibuf/I

Max Frequency Summary:

NO. Clock Name Constraint Actual Fmax Logic Level Entity
1 RdClk 100.000(MHz) 154.351(MHz) 8 TOP
2 WrClk 100.000(MHz) 156.006(MHz) 9 TOP

Detail Timing Paths Information

Path 1

Path Summary:
Slack 3.521
Data Arrival Time 6.790
Data Required Time 10.311
From fifo_inst/Empty_s0
To fifo_inst/Empty_s0
Launch Clk RdClk[R]
Latch Clk RdClk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 RdClk
0.000 0.000 tCL RR 1 RdClk_ibuf/I
0.000 0.000 tINS RR 63 RdClk_ibuf/O
0.375 0.375 tNET RR 1 fifo_inst/Empty_s0/CLK
0.757 0.382 tC2Q RR 7 fifo_inst/Empty_s0/Q
1.132 0.375 tNET RR 1 fifo_inst/rbin_num_next_2_s4/I0
1.659 0.526 tINS RR 10 fifo_inst/rbin_num_next_2_s4/F
2.034 0.375 tNET RR 1 fifo_inst/Small.rgraynext_2_s2/I1
2.550 0.516 tINS RR 7 fifo_inst/Small.rgraynext_2_s2/F
2.925 0.375 tNET RR 1 fifo_inst/Small.rgraynext_3_s1/I1
3.441 0.516 tINS RR 3 fifo_inst/Small.rgraynext_3_s1/F
3.816 0.375 tNET RR 1 fifo_inst/Small.rgraynext_4_s0/I1
4.333 0.516 tINS RR 2 fifo_inst/Small.rgraynext_4_s0/F
4.708 0.375 tNET RR 2 fifo_inst/n681_s0/I0
5.264 0.556 tINS RF 1 fifo_inst/n681_s0/COUT
5.264 0.000 tNET FF 2 fifo_inst/n682_s0/CIN
5.314 0.050 tINS FR 1 fifo_inst/n682_s0/COUT
5.314 0.000 tNET RR 2 fifo_inst/n683_s0/CIN
5.364 0.050 tINS RR 1 fifo_inst/n683_s0/COUT
5.364 0.000 tNET RR 2 fifo_inst/n684_s0/CIN
5.414 0.050 tINS RR 1 fifo_inst/n684_s0/COUT
5.414 0.000 tNET RR 2 fifo_inst/n685_s0/CIN
5.464 0.050 tINS RR 1 fifo_inst/n685_s0/COUT
5.464 0.000 tNET RR 2 fifo_inst/n686_s0/CIN
5.514 0.050 tINS RR 2 fifo_inst/n686_s0/COUT
5.889 0.375 tNET RR 1 fifo_inst/rempty_val_s1/I0
6.415 0.526 tINS RR 1 fifo_inst/rempty_val_s1/F
6.790 0.375 tNET RR 1 fifo_inst/Empty_s0/D
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
10.000 0.000 RdClk
10.000 0.000 tCL RR 1 RdClk_ibuf/I
10.000 0.000 tINS RR 63 RdClk_ibuf/O
10.375 0.375 tNET RR 1 fifo_inst/Empty_s0/CLK
10.311 -0.064 tSu 1 fifo_inst/Empty_s0
Path Statistics:
Clock Skew: 0.000
Setup Relationship: 10.000
Logic Level: 8
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%
Arrival Data Path Delay: cell: 3.407, 53.117%; route: 2.625, 40.920%; tC2Q: 0.382, 5.963%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%

Path 2

Path Summary:
Slack 3.559
Data Arrival Time 6.725
Data Required Time 10.284
From fifo_inst/Empty_s0
To fifo_inst/Small.mem_Small.mem_0_3_s
Launch Clk RdClk[R]
Latch Clk RdClk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 RdClk
0.000 0.000 tCL RR 1 RdClk_ibuf/I
0.000 0.000 tINS RR 63 RdClk_ibuf/O
0.375 0.375 tNET RR 1 fifo_inst/Empty_s0/CLK
0.757 0.382 tC2Q RR 7 fifo_inst/Empty_s0/Q
1.132 0.375 tNET RR 1 fifo_inst/rbin_num_next_2_s4/I0
1.659 0.526 tINS RR 10 fifo_inst/rbin_num_next_2_s4/F
2.034 0.375 tNET RR 1 fifo_inst/Small.rgraynext_2_s2/I1
2.550 0.516 tINS RR 7 fifo_inst/Small.rgraynext_2_s2/F
2.925 0.375 tNET RR 1 fifo_inst/Small.rgraynext_3_s1/I1
3.441 0.516 tINS RR 3 fifo_inst/Small.rgraynext_3_s1/F
3.816 0.375 tNET RR 1 fifo_inst/Small.rgraynext_4_s0/I1
4.333 0.516 tINS RR 2 fifo_inst/Small.rgraynext_4_s0/F
4.708 0.375 tNET RR 2 fifo_inst/n681_s0/I0
5.264 0.556 tINS RF 1 fifo_inst/n681_s0/COUT
5.264 0.000 tNET FF 2 fifo_inst/n682_s0/CIN
5.314 0.050 tINS FR 1 fifo_inst/n682_s0/COUT
5.314 0.000 tNET RR 2 fifo_inst/n683_s0/CIN
5.364 0.050 tINS RR 1 fifo_inst/n683_s0/COUT
5.364 0.000 tNET RR 2 fifo_inst/n684_s0/CIN
5.414 0.050 tINS RR 1 fifo_inst/n684_s0/COUT
5.414 0.000 tNET RR 2 fifo_inst/n685_s0/CIN
5.464 0.050 tINS RR 1 fifo_inst/n685_s0/COUT
5.464 0.000 tNET RR 2 fifo_inst/n686_s0/CIN
5.514 0.050 tINS RR 2 fifo_inst/n686_s0/COUT
5.889 0.375 tNET RR 1 fifo_inst/n37_s1/I2
6.350 0.461 tINS RR 4 fifo_inst/n37_s1/F
6.725 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_3_s/CEB
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
10.000 0.000 RdClk
10.000 0.000 tCL RR 1 RdClk_ibuf/I
10.000 0.000 tINS RR 63 RdClk_ibuf/O
10.375 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_3_s/CLKB
10.284 -0.091 tSu 1 fifo_inst/Small.mem_Small.mem_0_3_s
Path Statistics:
Clock Skew: 0.000
Setup Relationship: 10.000
Logic Level: 8
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%
Arrival Data Path Delay: cell: 3.342, 52.637%; route: 2.625, 41.339%; tC2Q: 0.382, 6.024%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%

Path 3

Path Summary:
Slack 3.559
Data Arrival Time 6.725
Data Required Time 10.284
From fifo_inst/Empty_s0
To fifo_inst/Small.mem_Small.mem_0_2_s
Launch Clk RdClk[R]
Latch Clk RdClk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 RdClk
0.000 0.000 tCL RR 1 RdClk_ibuf/I
0.000 0.000 tINS RR 63 RdClk_ibuf/O
0.375 0.375 tNET RR 1 fifo_inst/Empty_s0/CLK
0.757 0.382 tC2Q RR 7 fifo_inst/Empty_s0/Q
1.132 0.375 tNET RR 1 fifo_inst/rbin_num_next_2_s4/I0
1.659 0.526 tINS RR 10 fifo_inst/rbin_num_next_2_s4/F
2.034 0.375 tNET RR 1 fifo_inst/Small.rgraynext_2_s2/I1
2.550 0.516 tINS RR 7 fifo_inst/Small.rgraynext_2_s2/F
2.925 0.375 tNET RR 1 fifo_inst/Small.rgraynext_3_s1/I1
3.441 0.516 tINS RR 3 fifo_inst/Small.rgraynext_3_s1/F
3.816 0.375 tNET RR 1 fifo_inst/Small.rgraynext_4_s0/I1
4.333 0.516 tINS RR 2 fifo_inst/Small.rgraynext_4_s0/F
4.708 0.375 tNET RR 2 fifo_inst/n681_s0/I0
5.264 0.556 tINS RF 1 fifo_inst/n681_s0/COUT
5.264 0.000 tNET FF 2 fifo_inst/n682_s0/CIN
5.314 0.050 tINS FR 1 fifo_inst/n682_s0/COUT
5.314 0.000 tNET RR 2 fifo_inst/n683_s0/CIN
5.364 0.050 tINS RR 1 fifo_inst/n683_s0/COUT
5.364 0.000 tNET RR 2 fifo_inst/n684_s0/CIN
5.414 0.050 tINS RR 1 fifo_inst/n684_s0/COUT
5.414 0.000 tNET RR 2 fifo_inst/n685_s0/CIN
5.464 0.050 tINS RR 1 fifo_inst/n685_s0/COUT
5.464 0.000 tNET RR 2 fifo_inst/n686_s0/CIN
5.514 0.050 tINS RR 2 fifo_inst/n686_s0/COUT
5.889 0.375 tNET RR 1 fifo_inst/n37_s1/I2
6.350 0.461 tINS RR 4 fifo_inst/n37_s1/F
6.725 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_2_s/CEB
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
10.000 0.000 RdClk
10.000 0.000 tCL RR 1 RdClk_ibuf/I
10.000 0.000 tINS RR 63 RdClk_ibuf/O
10.375 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_2_s/CLKB
10.284 -0.091 tSu 1 fifo_inst/Small.mem_Small.mem_0_2_s
Path Statistics:
Clock Skew: 0.000
Setup Relationship: 10.000
Logic Level: 8
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%
Arrival Data Path Delay: cell: 3.342, 52.637%; route: 2.625, 41.339%; tC2Q: 0.382, 6.024%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%

Path 4

Path Summary:
Slack 3.559
Data Arrival Time 6.725
Data Required Time 10.284
From fifo_inst/Empty_s0
To fifo_inst/Small.mem_Small.mem_0_1_s
Launch Clk RdClk[R]
Latch Clk RdClk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 RdClk
0.000 0.000 tCL RR 1 RdClk_ibuf/I
0.000 0.000 tINS RR 63 RdClk_ibuf/O
0.375 0.375 tNET RR 1 fifo_inst/Empty_s0/CLK
0.757 0.382 tC2Q RR 7 fifo_inst/Empty_s0/Q
1.132 0.375 tNET RR 1 fifo_inst/rbin_num_next_2_s4/I0
1.659 0.526 tINS RR 10 fifo_inst/rbin_num_next_2_s4/F
2.034 0.375 tNET RR 1 fifo_inst/Small.rgraynext_2_s2/I1
2.550 0.516 tINS RR 7 fifo_inst/Small.rgraynext_2_s2/F
2.925 0.375 tNET RR 1 fifo_inst/Small.rgraynext_3_s1/I1
3.441 0.516 tINS RR 3 fifo_inst/Small.rgraynext_3_s1/F
3.816 0.375 tNET RR 1 fifo_inst/Small.rgraynext_4_s0/I1
4.333 0.516 tINS RR 2 fifo_inst/Small.rgraynext_4_s0/F
4.708 0.375 tNET RR 2 fifo_inst/n681_s0/I0
5.264 0.556 tINS RF 1 fifo_inst/n681_s0/COUT
5.264 0.000 tNET FF 2 fifo_inst/n682_s0/CIN
5.314 0.050 tINS FR 1 fifo_inst/n682_s0/COUT
5.314 0.000 tNET RR 2 fifo_inst/n683_s0/CIN
5.364 0.050 tINS RR 1 fifo_inst/n683_s0/COUT
5.364 0.000 tNET RR 2 fifo_inst/n684_s0/CIN
5.414 0.050 tINS RR 1 fifo_inst/n684_s0/COUT
5.414 0.000 tNET RR 2 fifo_inst/n685_s0/CIN
5.464 0.050 tINS RR 1 fifo_inst/n685_s0/COUT
5.464 0.000 tNET RR 2 fifo_inst/n686_s0/CIN
5.514 0.050 tINS RR 2 fifo_inst/n686_s0/COUT
5.889 0.375 tNET RR 1 fifo_inst/n37_s1/I2
6.350 0.461 tINS RR 4 fifo_inst/n37_s1/F
6.725 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_1_s/CEB
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
10.000 0.000 RdClk
10.000 0.000 tCL RR 1 RdClk_ibuf/I
10.000 0.000 tINS RR 63 RdClk_ibuf/O
10.375 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_1_s/CLKB
10.284 -0.091 tSu 1 fifo_inst/Small.mem_Small.mem_0_1_s
Path Statistics:
Clock Skew: 0.000
Setup Relationship: 10.000
Logic Level: 8
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%
Arrival Data Path Delay: cell: 3.342, 52.637%; route: 2.625, 41.339%; tC2Q: 0.382, 6.024%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%

Path 5

Path Summary:
Slack 3.559
Data Arrival Time 6.725
Data Required Time 10.284
From fifo_inst/Empty_s0
To fifo_inst/Small.mem_Small.mem_0_0_s
Launch Clk RdClk[R]
Latch Clk RdClk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 RdClk
0.000 0.000 tCL RR 1 RdClk_ibuf/I
0.000 0.000 tINS RR 63 RdClk_ibuf/O
0.375 0.375 tNET RR 1 fifo_inst/Empty_s0/CLK
0.757 0.382 tC2Q RR 7 fifo_inst/Empty_s0/Q
1.132 0.375 tNET RR 1 fifo_inst/rbin_num_next_2_s4/I0
1.659 0.526 tINS RR 10 fifo_inst/rbin_num_next_2_s4/F
2.034 0.375 tNET RR 1 fifo_inst/Small.rgraynext_2_s2/I1
2.550 0.516 tINS RR 7 fifo_inst/Small.rgraynext_2_s2/F
2.925 0.375 tNET RR 1 fifo_inst/Small.rgraynext_3_s1/I1
3.441 0.516 tINS RR 3 fifo_inst/Small.rgraynext_3_s1/F
3.816 0.375 tNET RR 1 fifo_inst/Small.rgraynext_4_s0/I1
4.333 0.516 tINS RR 2 fifo_inst/Small.rgraynext_4_s0/F
4.708 0.375 tNET RR 2 fifo_inst/n681_s0/I0
5.264 0.556 tINS RF 1 fifo_inst/n681_s0/COUT
5.264 0.000 tNET FF 2 fifo_inst/n682_s0/CIN
5.314 0.050 tINS FR 1 fifo_inst/n682_s0/COUT
5.314 0.000 tNET RR 2 fifo_inst/n683_s0/CIN
5.364 0.050 tINS RR 1 fifo_inst/n683_s0/COUT
5.364 0.000 tNET RR 2 fifo_inst/n684_s0/CIN
5.414 0.050 tINS RR 1 fifo_inst/n684_s0/COUT
5.414 0.000 tNET RR 2 fifo_inst/n685_s0/CIN
5.464 0.050 tINS RR 1 fifo_inst/n685_s0/COUT
5.464 0.000 tNET RR 2 fifo_inst/n686_s0/CIN
5.514 0.050 tINS RR 2 fifo_inst/n686_s0/COUT
5.889 0.375 tNET RR 1 fifo_inst/n37_s1/I2
6.350 0.461 tINS RR 4 fifo_inst/n37_s1/F
6.725 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_0_s/CEB
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
10.000 0.000 RdClk
10.000 0.000 tCL RR 1 RdClk_ibuf/I
10.000 0.000 tINS RR 63 RdClk_ibuf/O
10.375 0.375 tNET RR 1 fifo_inst/Small.mem_Small.mem_0_0_s/CLKB
10.284 -0.091 tSu 1 fifo_inst/Small.mem_Small.mem_0_0_s
Path Statistics:
Clock Skew: 0.000
Setup Relationship: 10.000
Logic Level: 8
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%
Arrival Data Path Delay: cell: 3.342, 52.637%; route: 2.625, 41.339%; tC2Q: 0.382, 6.024%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.375, 100.000%