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📄 asyn_rst.srr

📁 设计与验证verilog hdl
💻 SRR
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#Program: Synplify Pro 8.1
#OS: Windows_NT

$ Start of Compile
#Wed Jan 11 17:07:58 2006

Synplicity Verilog Compiler, version 3.1.0, Build 049R, built May  3 2005
Copyright (C) 1994-2005, Synplicity Inc.  All Rights Reserved

@I::"C:\eda\synplicity\fpga_81\lib\lucent\xp.v"
@I::"C:\prj\Example-4-9\asyn_rst\asyn_rst.v"
Verilog syntax check successful!
Selecting top level module asyn_rst
@N:"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":1:7:1:14|Synthesizing module asyn_rst

@N: CG179 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":20:20:20:23|Removing redundant assignment
@W: CL190 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Optimizing register bit cnt1[2] to a constant 0
@W: CL190 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Optimizing register bit cnt1[3] to a constant 0
@W: CL190 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Optimizing register bit cnt1[4] to a constant 0
@W: CL171 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Pruning Register bit <4> of cnt1[4:0] 

@W: CL171 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Pruning Register bit <3> of cnt1[4:0] 

@W: CL171 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Pruning Register bit <2> of cnt1[4:0] 

@W: CL171 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Pruning Register bit <4> of cnt2[4:0] 

@W: CL171 :"C:\prj\Example-4-9\asyn_rst\asyn_rst.v":9:0:9:5|Pruning Register bit <3> of cnt2[4:0] 

@END
Process took 0h:00m:01s realtime, 0h:00m:01s cputime
# Wed Jan 11 17:07:58 2006

###########################################################[
Version 8.1
Synplicity Lattice ORCA FPGA Technology Mapper, Version 8.1.0, Build 532R, Built Apr 28 2005
Copyright (C) 1994-2005, Synplicity Inc.  All Rights Reserved
Setting fanout limit to 100
Starting Generic Flow
@N: MT204 |Autoconstrain Mode is ON
---------------------------------------
Resource Usage Report
Part: lfxp10c-3

Register bits: 5 of 9728 (0%)
I/O cells:       12

Details:
FD1S3AX:        5
GSR:            1
IB:             2
INV:            2
OB:             10
ORCALUT4:       3
VHI:            1
VLO:            1
Found clock asyn_rst|clk with period 3.02ns 


##### START OF TIMING REPORT #####[
# Timing Report written on Wed Jan 11 17:08:00 2006
#


Top view:               asyn_rst
Requested Frequency:    331.7 MHz
Wire load mode:         top
Paths requested:        5
Constraint File(s):    
@N: MT195 |This timing report estimates place and route data. Please look at the place and route timing report for final timing..

@N: MT197 |Clock constraints cover only FF-to-FF paths associated with the clock..



Performance Summary 
*******************


Worst slack in design: -0.532

                   Requested     Estimated     Requested     Estimated                Clock        Clock                
Starting Clock     Frequency     Frequency     Period        Period        Slack      Type         Group                
------------------------------------------------------------------------------------------------------------------------
asyn_rst|clk       331.7 MHz     281.9 MHz     3.015         3.547         -0.532     inferred     Autoconstr_clkgroup_0
========================================================================================================================





Clock Relationships
*******************

Clocks                      |    rise  to  rise    |    fall  to  fall   |    rise  to  fall   |    fall  to  rise 
-------------------------------------------------------------------------------------------------------------------
Starting      Ending        |  constraint  slack   |  constraint  slack  |  constraint  slack  |  constraint  slack
-------------------------------------------------------------------------------------------------------------------
asyn_rst|clk  asyn_rst|clk  |  3.015       -0.532  |  No paths    -      |  No paths    -      |  No paths    -    
===================================================================================================================
 Note: 'No paths' indicates there are no paths in the design for that pair of clock edges.
       'Diff grp' indicates that paths exist but the starting clock and ending clock are in different clock groups.



Interface Information 
*********************

		No IO constraint found 



====================================
Detailed Report for Clock: asyn_rst|clk
====================================



Starting Points with Worst Slack
********************************

                Starting                                           Arrival           
Instance        Reference        Type        Pin     Net           Time        Slack 
                Clock                                                                
-------------------------------------------------------------------------------------
cnt1_1_0_.Q     asyn_rst|clk     FD1S3AX     Q       cnt1_c[0]     1.898       -0.532
cnt1_1_1_.Q     asyn_rst|clk     FD1S3AX     Q       cnt1_c[1]     1.880       -0.513
cnt2_1_2_.Q     asyn_rst|clk     FD1S3AX     Q       cnt2_c[4]     1.880       -0.513
=====================================================================================


Ending Points with Worst Slack
******************************

                Starting                                                         Required           
Instance        Reference        Type        Pin     Net                         Time         Slack 
                Clock                                                                               
----------------------------------------------------------------------------------------------------
cnt1_1_1_.Q     asyn_rst|clk     FD1S3AX     D       N_16_i                      2.691        -0.532
cnt2_1_0_.Q     asyn_rst|clk     FD1S3AX     D       cnt1_1_i[0]                 2.691        -0.532
cnt2_1_1_.Q     asyn_rst|clk     FD1S3AX     D       N_8_i_i                     2.691        -0.532
cnt2_1_2_.Q     asyn_rst|clk     FD1S3AX     D       un3_cnt2_m_0_a2_0_a2[2]     2.691        -0.532
cnt1_1_0_.Q     asyn_rst|clk     FD1S3AX     D       cnt2_1_i[2]                 2.691        -0.513
====================================================================================================



Worst Path Information
***********************


Path information for path number 1: 
    Requested Period:                        3.015
    - Setup time:                            0.324
    = Required time:                         2.691

    - Propagation time:                      3.223
    = Slack (critical) :                     -0.532

    Number of logic level(s):                1
    Starting point:                          cnt1_1_0_.Q / Q
    Ending point:                            cnt2_1_1_.Q / D
    The start point is clocked by            asyn_rst|clk [rising] on pin CK
    The end   point is clocked by            asyn_rst|clk [rising] on pin CK

Instance / Net                  Pin      Pin               Arrival     No. of    
Name               Type         Name     Dir     Delay     Time        Fan Out(s)
---------------------------------------------------------------------------------
cnt1_1_0_.Q        FD1S3AX      Q        Out     1.898     1.898       -         
cnt1_c[0]          Net          -        -       -         -           5         
N_8_i_i            ORCALUT4     A        In      0.000     1.898       -         
N_8_i_i            ORCALUT4     Z        Out     1.325     3.223       -         
N_8_i_i            Net          -        -       -         -           1         
cnt2_1_1_.Q        FD1S3AX      D        In      0.000     3.223       -         
=================================================================================


Path information for path number 2: 
    Requested Period:                        3.015
    - Setup time:                            0.324
    = Required time:                         2.691

    - Propagation time:                      3.223
    = Slack (critical) :                     -0.532

    Number of logic level(s):                1
    Starting point:                          cnt1_1_0_.Q / Q
    Ending point:                            cnt2_1_0_.Q / D
    The start point is clocked by            asyn_rst|clk [rising] on pin CK
    The end   point is clocked by            asyn_rst|clk [rising] on pin CK

Instance / Net                 Pin      Pin               Arrival     No. of    
Name               Type        Name     Dir     Delay     Time        Fan Out(s)
--------------------------------------------------------------------------------
cnt1_1_0_.Q        FD1S3AX     Q        Out     1.898     1.898       -         
cnt1_c[0]          Net         -        -       -         -           5         
cnt1_1_i[0]        INV         A        In      0.000     1.898       -         
cnt1_1_i[0]        INV         Z        Out     1.325     3.223       -         
cnt1_1_i[0]        Net         -        -       -         -           1         
cnt2_1_0_.Q        FD1S3AX     D        In      0.000     3.223       -         
================================================================================


Path information for path number 3: 
    Requested Period:                        3.015
    - Setup time:                            0.324
    = Required time:                         2.691

    - Propagation time:                      3.223
    = Slack (critical) :                     -0.532

    Number of logic level(s):                1
    Starting point:                          cnt1_1_0_.Q / Q
    Ending point:                            cnt1_1_1_.Q / D
    The start point is clocked by            asyn_rst|clk [rising] on pin CK
    The end   point is clocked by            asyn_rst|clk [rising] on pin CK

Instance / Net                  Pin      Pin               Arrival     No. of    
Name               Type         Name     Dir     Delay     Time        Fan Out(s)
---------------------------------------------------------------------------------
cnt1_1_0_.Q        FD1S3AX      Q        Out     1.898     1.898       -         
cnt1_c[0]          Net          -        -       -         -           5         
N_16_i             ORCALUT4     A        In      0.000     1.898       -         
N_16_i             ORCALUT4     Z        Out     1.325     3.223       -         
N_16_i             Net          -        -       -         -           1         
cnt1_1_1_.Q        FD1S3AX      D        In      0.000     3.223       -         
=================================================================================


Path information for path number 4: 
    Requested Period:                        3.015
    - Setup time:                            0.324
    = Required time:                         2.691

    - Propagation time:                      3.223
    = Slack (critical) :                     -0.532

    Number of logic level(s):                1
    Starting point:                          cnt1_1_0_.Q / Q
    Ending point:                            cnt2_1_2_.Q / D
    The start point is clocked by            asyn_rst|clk [rising] on pin CK
    The end   point is clocked by            asyn_rst|clk [rising] on pin CK

Instance / Net                           Pin      Pin               Arrival     No. of    
Name                        Type         Name     Dir     Delay     Time        Fan Out(s)
------------------------------------------------------------------------------------------
cnt1_1_0_.Q                 FD1S3AX      Q        Out     1.898     1.898       -         
cnt1_c[0]                   Net          -        -       -         -           5         
un3_cnt2_m_0_a2_0_a2[2]     ORCALUT4     A        In      0.000     1.898       -         
un3_cnt2_m_0_a2_0_a2[2]     ORCALUT4     Z        Out     1.325     3.223       -         
un3_cnt2_m_0_a2_0_a2[2]     Net          -        -       -         -           1         
cnt2_1_2_.Q                 FD1S3AX      D        In      0.000     3.223       -         
==========================================================================================


Path information for path number 5: 
    Requested Period:                        3.015
    - Setup time:                            0.324
    = Required time:                         2.691

    - Propagation time:                      3.204
    = Slack (non-critical) :                 -0.513

    Number of logic level(s):                1
    Starting point:                          cnt1_1_1_.Q / Q
    Ending point:                            cnt2_1_1_.Q / D
    The start point is clocked by            asyn_rst|clk [rising] on pin CK
    The end   point is clocked by            asyn_rst|clk [rising] on pin CK

Instance / Net                  Pin      Pin               Arrival     No. of    
Name               Type         Name     Dir     Delay     Time        Fan Out(s)
---------------------------------------------------------------------------------
cnt1_1_1_.Q        FD1S3AX      Q        Out     1.880     1.880       -         
cnt1_c[1]          Net          -        -       -         -           4         
N_8_i_i            ORCALUT4     B        In      0.000     1.880       -         
N_8_i_i            ORCALUT4     Z        Out     1.325     3.204       -         
N_8_i_i            Net          -        -       -         -           1         
cnt2_1_1_.Q        FD1S3AX      D        In      0.000     3.204       -         
=================================================================================



##### END OF TIMING REPORT #####]

Mapper successful!
Process took 0h:0m:1s realtime, 0h:0m:1s cputime
###########################################################]

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