Synthesis Messages

Report Title GowinSynthesis Report
Design File D:\DATA\AC601_GW5A25\mipi_dsi\tmp\ov5647_b_migration_20261102\runtime\IDE\ipcore\DDR3\data\ddr3_1_4code_hs\ddr3_1_4code_hs.v
D:\DATA\AC601_GW5A25\mipi_dsi\tmp\ov5647_b_migration_20261102\runtime\IDE\ipcore\DDR3\data\ddr3_1_4code_hs\DDR3_TOP.v
GowinSynthesis Constraints File ---
Tool Version V1.9.12.02_SP2 (64-bit)
Part Number GW5A-LV25UG324C2/I1
Device GW5A-25
Device Version B
Created Time Mon Nov 2 17:05:16 2026
Legal Announcement Copyright (C)2014-2026 Gowin Semiconductor Corporation. ALL rights reserved.

Synthesis Details

Top Level Module DDR3_Memory_Interface_Top
Synthesis Process Running parser:
    CPU time = 0h 0m 0.875s, Elapsed time = 0h 0m 1s, Peak memory usage = 124.434MB
Running netlist conversion:
    CPU time = 0h 0m 0.078s, Elapsed time = 0h 0m 0.085s, Peak memory usage = 124.434MB
Running device independent optimization:
    Optimizing Phase 0: CPU time = 0h 0m 0.437s, Elapsed time = 0h 0m 0.435s, Peak memory usage = 124.434MB
    Optimizing Phase 1: CPU time = 0h 0m 0.187s, Elapsed time = 0h 0m 0.206s, Peak memory usage = 124.434MB
    Optimizing Phase 2: CPU time = 0h 0m 0.718s, Elapsed time = 0h 0m 0.713s, Peak memory usage = 124.434MB
Running inference:
    Inferring Phase 0: CPU time = 0h 0m 0.406s, Elapsed time = 0h 0m 0.399s, Peak memory usage = 124.434MB
    Inferring Phase 1: CPU time = 0h 0m 0.078s, Elapsed time = 0h 0m 0.083s, Peak memory usage = 124.434MB
    Inferring Phase 2: CPU time = 0h 0m 0.046s, Elapsed time = 0h 0m 0.041s, Peak memory usage = 124.434MB
    Inferring Phase 3: CPU time = 0h 0m 0.015s, Elapsed time = 0h 0m 0.02s, Peak memory usage = 124.434MB
Running technical mapping:
    Tech-Mapping Phase 0: CPU time = 0h 0m 0.437s, Elapsed time = 0h 0m 0.44s, Peak memory usage = 124.434MB
    Tech-Mapping Phase 1: CPU time = 0h 0m 0.14s, Elapsed time = 0h 0m 0.16s, Peak memory usage = 124.434MB
    Tech-Mapping Phase 2: CPU time = 0h 0m 0.109s, Elapsed time = 0h 0m 0.103s, Peak memory usage = 124.434MB
    Tech-Mapping Phase 3: CPU time = 0h 0m 2s, Elapsed time = 0h 0m 2s, Peak memory usage = 135.125MB
    Tech-Mapping Phase 4: CPU time = 0h 0m 0.359s, Elapsed time = 0h 0m 0.415s, Peak memory usage = 135.125MB
Generate output files:
    CPU time = 0h 0m 0.359s, Elapsed time = 0h 0m 0.393s, Peak memory usage = 135.125MB
Total Time and Memory Usage CPU time = 0h 0m 6s, Elapsed time = 0h 0m 6s, Peak memory usage = 135.125MB

Resource

Resource Usage Summary

Resource Usage
I/O Port 373
I/O Buf 367
    IBUF 183
    OBUF 163
    TBUF 2
    IOBUF 16
    ELVDS_OBUF 1
    ELVDS_IOBUF 2
Register 3602
    DFFSE 1
    DFFRE 257
    DFFPE 67
    DFFCE 3277
LUT 1973
    LUT2 279
    LUT3 924
    LUT4 770
ALU 126
    ALU 126
INV 22
    INV 22
IOLOGIC 77
    IDES8_MEM 16
    OSER8 25
    OSER8_MEM 20
    IODELAY 16
BSRAM 8
    SDPB 4
    SDPX9B 4
CLOCK 4
    CLKDIV 1
    DQS 2
    DDRDLL 1

Resource Utilization Summary

Resource Usage Utilization
Logic 2121(1995 LUT, 126 ALU) / 23040 10%
Register 3602 / 23685 16%
  --Register as Latch 0 / 23685 0%
  --Register as FF 3602 / 23685 16%
BSRAM 8 / 56 15%

Timing

Clock Summary:

NO. Clock Name Type Period Frequency(MHz) Rise Fall Source Master Object
1 memory_clk Base 10.000 100.000 0.000 5.000 memory_clk_ibuf/I
2 clk Base 10.000 100.000 0.000 5.000 clk_ibuf/I
3 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk Generated 40.000 25.000 0.000 20.000 memory_clk_ibuf/I memory_clk gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT

Max Frequency Summary:

NO. Clock Name Constraint Actual Fmax Logic Level Entity
1 memory_clk 100.000(MHz) 1549.218(MHz) 1 TOP
2 clk 100.000(MHz) 293.945(MHz) 6 TOP
3 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk 25.000(MHz) 240.500(MHz) 3 TOP

Detail Timing Paths Information

Path 1

Path Summary:
Slack 3.116
Data Arrival Time 1.725
Data Required Time 4.842
From gw3_top/u_ddr_phy_top/u_ddr_init/read_rclksel_conf_1_s0
To gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[1].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs
Launch Clk gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk[R]
Latch Clk memory_clk[F]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 active clock edge time
0.000 0.000 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk
0.261 0.261 tCL RR 3642 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT
0.531 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/read_rclksel_conf_1_s0/CLK
0.806 0.275 tC2Q RR 10 gw3_top/u_ddr_phy_top/u_ddr_init/read_rclksel_conf_1_s0/Q
1.076 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/hold_Z_1_s/I0
1.455 0.379 tINS RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/hold_Z_1_s/F
1.725 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[1].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs/HOLD
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
5.000 5.000 active clock edge time
5.000 0.000 memory_clk
5.000 0.000 tCL FF 1 memory_clk_ibuf/I
5.000 0.000 tINS FF 65 memory_clk_ibuf/O
5.252 0.252 tNET FF 1 gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[1].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs/FCLK
5.217 -0.035 tUnc gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[1].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs
4.842 -0.375 tSu 1 gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[1].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs
Path Statistics:
Clock Skew: -0.279
Setup Relationship: 5.000
Logic Level: 2
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%
Arrival Data Path Delay: cell: 0.379, 31.726%; route: 0.540, 45.214%; tC2Q: 0.275, 23.060%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%

Path 2

Path Summary:
Slack 3.116
Data Arrival Time 1.725
Data Required Time 4.842
From gw3_top/u_ddr_phy_top/u_ddr_init/read_rclksel_conf_0_s0
To gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[0].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs
Launch Clk gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk[R]
Latch Clk memory_clk[F]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 active clock edge time
0.000 0.000 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk
0.261 0.261 tCL RR 3642 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT
0.531 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/read_rclksel_conf_0_s0/CLK
0.806 0.275 tC2Q RR 10 gw3_top/u_ddr_phy_top/u_ddr_init/read_rclksel_conf_0_s0/Q
1.076 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/hold_Z_0_s/I0
1.455 0.379 tINS RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/hold_Z_0_s/F
1.725 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[0].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs/HOLD
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
5.000 5.000 active clock edge time
5.000 0.000 memory_clk
5.000 0.000 tCL FF 1 memory_clk_ibuf/I
5.000 0.000 tINS FF 65 memory_clk_ibuf/O
5.252 0.252 tNET FF 1 gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[0].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs/FCLK
5.217 -0.035 tUnc gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[0].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs
4.842 -0.375 tSu 1 gw3_top/u_ddr_phy_top/u_ddr_phy_wds/data_lane_gen[0].u_ddr_phy_data_lane/u_ddr_phy_data_io/u_dqs
Path Statistics:
Clock Skew: -0.279
Setup Relationship: 5.000
Logic Level: 2
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%
Arrival Data Path Delay: cell: 0.379, 31.726%; route: 0.540, 45.214%; tC2Q: 0.275, 23.060%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%

Path 3

Path Summary:
Slack 6.598
Data Arrival Time 3.626
Data Required Time 10.224
From gw3_top/u_ddr_phy_top/ddr_sync/cs_memsync_5_s0
To gw3_top/u_ddr_phy_top/ddr_sync/count_0_s0
Launch Clk clk[R]
Latch Clk clk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
0.000 0.000 active clock edge time
0.000 0.000 clk
0.000 0.000 tCL RR 1 clk_ibuf/I
0.000 0.000 tINS RR 40 clk_ibuf/O
0.270 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/cs_memsync_5_s0/CLK
0.545 0.275 tC2Q RR 5 gw3_top/u_ddr_phy_top/ddr_sync/cs_memsync_5_s0/Q
0.815 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/ns_memsync_2_s16/I0
1.194 0.379 tINS RR 2 gw3_top/u_ddr_phy_top/ddr_sync/ns_memsync_2_s16/F
1.464 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/ns_memsync_0_s14/I2
1.796 0.332 tINS RR 2 gw3_top/u_ddr_phy_top/ddr_sync/ns_memsync_0_s14/F
2.066 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/n298_s5/I3
2.255 0.189 tINS RR 1 gw3_top/u_ddr_phy_top/ddr_sync/n298_s5/F
2.525 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/n298_s4/I3
2.714 0.189 tINS RR 3 gw3_top/u_ddr_phy_top/ddr_sync/n298_s4/F
2.984 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/n298_s3/I1
3.356 0.372 tINS RR 1 gw3_top/u_ddr_phy_top/ddr_sync/n298_s3/F
3.626 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/count_0_s0/D
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
10.000 10.000 active clock edge time
10.000 0.000 clk
10.000 0.000 tCL RR 1 clk_ibuf/I
10.000 0.000 tINS RR 40 clk_ibuf/O
10.270 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/count_0_s0/CLK
10.224 -0.046 tSu 1 gw3_top/u_ddr_phy_top/ddr_sync/count_0_s0
Path Statistics:
Clock Skew: 0.000
Setup Relationship: 10.000
Logic Level: 6
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%
Arrival Data Path Delay: cell: 1.461, 43.524%; route: 1.620, 48.270%; tC2Q: 0.275, 8.206%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%

Path 4

Path Summary:
Slack 6.634
Data Arrival Time 33.816
Data Required Time 40.450
From gw3_top/u_ddr_phy_top/ddr_sync/ddr_init_st_s0
To gw3_top/u_ddr_phy_top/u_ddr_init/init_state.READ_CALIBRATION_s0
Launch Clk clk[R]
Latch Clk gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
30.000 30.000 active clock edge time
30.000 0.000 clk
30.000 0.000 tCL RR 1 clk_ibuf/I
30.000 0.000 tINS RR 40 clk_ibuf/O
30.270 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/ddr_init_st_s0/CLK
30.545 0.275 tC2Q RR 2 gw3_top/u_ddr_phy_top/ddr_sync/ddr_init_st_s0/Q
30.815 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.RESET_WAIT_s22/I3
31.004 0.189 tINS RR 3 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.RESET_WAIT_s22/F
31.274 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.LOAD_MR_s24/I1
31.646 0.372 tINS RR 2 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.LOAD_MR_s24/F
31.916 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.EYE_SCAN_s22/I0
32.295 0.379 tINS RR 3 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.EYE_SCAN_s22/F
32.565 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.WRLVL_LOAD_MR1_s20/I2
32.897 0.332 tINS RR 15 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.WRLVL_LOAD_MR1_s20/F
33.167 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.READ_CALIBRATION_s19/I0
33.546 0.379 tINS RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.READ_CALIBRATION_s19/F
33.816 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_state.READ_CALIBRATION_s0/D
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
40.000 40.000 active clock edge time
40.000 0.000 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk
40.261 0.261 tCL RR 3642 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT
40.531 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_state.READ_CALIBRATION_s0/CLK
40.496 -0.035 tUnc gw3_top/u_ddr_phy_top/u_ddr_init/init_state.READ_CALIBRATION_s0
40.450 -0.046 tSu 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_state.READ_CALIBRATION_s0
Path Statistics:
Clock Skew: 0.261
Setup Relationship: 10.000
Logic Level: 6
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%
Arrival Data Path Delay: cell: 1.651, 46.549%; route: 1.620, 45.685%; tC2Q: 0.275, 7.766%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%

Path 5

Path Summary:
Slack 6.634
Data Arrival Time 33.816
Data Required Time 40.450
From gw3_top/u_ddr_phy_top/ddr_sync/ddr_init_st_s0
To gw3_top/u_ddr_phy_top/u_ddr_init/init_state.WRLVL_MODE_CLOSE1_WAIT_s0
Launch Clk clk[R]
Latch Clk gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk[R]
Data Arrival Path:
AT DELAY TYPE RF FANOUT NODE
30.000 30.000 active clock edge time
30.000 0.000 clk
30.000 0.000 tCL RR 1 clk_ibuf/I
30.000 0.000 tINS RR 40 clk_ibuf/O
30.270 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/ddr_sync/ddr_init_st_s0/CLK
30.545 0.275 tC2Q RR 2 gw3_top/u_ddr_phy_top/ddr_sync/ddr_init_st_s0/Q
30.815 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.RESET_WAIT_s22/I3
31.004 0.189 tINS RR 3 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.RESET_WAIT_s22/F
31.274 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.LOAD_MR_s24/I1
31.646 0.372 tINS RR 2 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.LOAD_MR_s24/F
31.916 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.EYE_SCAN_s22/I0
32.295 0.379 tINS RR 3 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.EYE_SCAN_s22/F
32.565 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.WRLVL_LOAD_MR1_s20/I2
32.897 0.332 tINS RR 15 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.WRLVL_LOAD_MR1_s20/F
33.167 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.WRLVL_MODE_CLOSE1_WAIT_s19/I0
33.546 0.379 tINS RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_next_state.WRLVL_MODE_CLOSE1_WAIT_s19/F
33.816 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_state.WRLVL_MODE_CLOSE1_WAIT_s0/D
Data Required Path:
AT DELAY TYPE RF FANOUT NODE
40.000 40.000 active clock edge time
40.000 0.000 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT.default_gen_clk
40.261 0.261 tCL RR 3642 gw3_top/u_ddr_phy_top/fclkdiv/CLKOUT
40.531 0.270 tNET RR 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_state.WRLVL_MODE_CLOSE1_WAIT_s0/CLK
40.496 -0.035 tUnc gw3_top/u_ddr_phy_top/u_ddr_init/init_state.WRLVL_MODE_CLOSE1_WAIT_s0
40.450 -0.046 tSu 1 gw3_top/u_ddr_phy_top/u_ddr_init/init_state.WRLVL_MODE_CLOSE1_WAIT_s0
Path Statistics:
Clock Skew: 0.261
Setup Relationship: 10.000
Logic Level: 6
Arrival Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%
Arrival Data Path Delay: cell: 1.651, 46.549%; route: 1.620, 45.685%; tC2Q: 0.275, 7.766%
Required Clock Path Delay: cell: 0.000, 0.000%; route: 0.270, 100.000%