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📄 stopwatch.srr

📁 Xilinx ISE 官方源代码盘第九章
💻 SRR
📖 第 1 页 / 共 5 页
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Instance / Net                 Pin         Pin               Arrival     Fan
Name                Type       Name        Dir     Delay     Time        Out
----------------------------------------------------------------------------
strstop             Port       strstop     In      0.000     0.000          
strstop             Net                                                  1  
XLXI_6              IBUF       I           In                0.000          
XLXI_6              IBUF       O           Out     1.193     1.193          
XLXN_6              Net                                                  1  
XLXI_7              INV        I           In                1.193          
XLXI_7              INV        O           Out     1.108     2.301          
XLXN_7              Net                                                  6  
XLXI_5.N_6_i        LUT3_L     I0          In                2.301          
XLXI_5.N_6_i        LUT3_L     LO          Out     0.725     3.026          
N_6_i               Net                                                  1  
XLXI_5.counting     FDC        D           In                3.026          
============================================================================


Path information for path number 5: 
    - Setup time:                         -0.432
    = Required time:                      10.432

    - Propagation  time:                  3.026
    - User constraint on starting point:  0.000
    = Slack (non-critical) :              7.406

    Starting point:                       strstop / strstop
    Ending point:                         XLXI_5.stop / D
    The start point is clocked by         clk [rising]
    The end   point is clocked by         stopwatch|XLXI_16.CLK0_BUF_derived_clock [rising] on pin C

Instance / Net                Pin         Pin               Arrival     Fan
Name               Type       Name        Dir     Delay     Time        Out
---------------------------------------------------------------------------
strstop            Port       strstop     In      0.000     0.000          
strstop            Net                                                  1  
XLXI_6             IBUF       I           In                0.000          
XLXI_6             IBUF       O           Out     1.193     1.193          
XLXN_6             Net                                                  1  
XLXI_7             INV        I           In                1.193          
XLXI_7             INV        O           Out     1.108     2.301          
XLXN_7             Net                                                  6  
XLXI_5.N_4_i       LUT3_L     I0          In                2.301          
XLXI_5.N_4_i       LUT3_L     LO          Out     0.725     3.026          
N_4_i              Net                                                  1  
XLXI_5.stop        FDC        D           In                3.026          
===========================================================================


Path information for path number 6: 
    - Setup time:                         -0.432
    = Required time:                      10.432

    - Propagation  time:                  3.026
    - User constraint on starting point:  0.000
    = Slack (non-critical) :              7.406

    Starting point:                       strstop / strstop
    Ending point:                         XLXI_5.start / D
    The start point is clocked by         clk [rising]
    The end   point is clocked by         stopwatch|XLXI_16.CLK0_BUF_derived_clock [rising] on pin C

Instance / Net                Pin         Pin               Arrival     Fan
Name               Type       Name        Dir     Delay     Time        Out
---------------------------------------------------------------------------
strstop            Port       strstop     In      0.000     0.000          
strstop            Net                                                  1  
XLXI_6             IBUF       I           In                0.000          
XLXI_6             IBUF       O           Out     1.193     1.193          
XLXN_6             Net                                                  1  
XLXI_7             INV        I           In                1.193          
XLXI_7             INV        O           Out     1.108     2.301          
XLXN_7             Net                                                  6  
XLXI_5.N_2_i       LUT4_L     I0          In                2.301          
XLXI_5.N_2_i       LUT4_L     LO          Out     0.725     3.026          
N_2_i              Net                                                  1  
XLXI_5.start       FDC        D           In                3.026          
===========================================================================


Path information for path number 7: 
    - Setup time:                         0.000
    = Required time:                      10.000

    - Propagation  time:                  0.930
    - User constraint on starting point:  0.000
    = Slack (non-critical) :              9.070

    Starting point:                       clk / clk
    Ending point:                         XLXI_12.I3 / I1
    The start point is clocked by         clk [rising]
    The end   point is clocked by         clk [rising]

Instance / Net                         Pin       Pin               Arrival     Fan
Name                         Type      Name      Dir     Delay     Time        Out
----------------------------------------------------------------------------------
clk                          Port      clk       In      0.000     0.000          
clk                          Net                                               1  
XLXI_16.CLKIN_IBUFG_INST     IBUFG     I         In                0.000          
XLXI_16.CLKIN_IBUFG_INST     IBUFG     O         Out     0.465     0.465          
CLKIN_IBUFG                  Net                                               1  
XLXI_16.DCM_INST             DCM       CLKIN     In                0.465          
XLXI_16.DCM_INST             DCM       CLK0      Out     0.000     0.465          
DCM_INST_CLK0                Net                                               1  
XLXI_16.CLK0_BUFG_INST       BUFG      I         In                0.465          
XLXI_16.CLK0_BUFG_INST       BUFG      O         Out     0.465     0.930          
clk_int                      Net                                               7  
XLXI_12.I3                   OR2       I1        In                0.930          
==================================================================================


Path information for path number 8: 
    - Setup time:                         0.000
    = Required time:                      10.000

    - Propagation  time:                  0.930
    - User constraint on starting point:  0.000
    = Slack (non-critical) :              9.070

    Starting point:                       clk / clk
    Ending point:                         XLXI_9 / CLK
    The start point is clocked by         clk [rising]
    The end   point is clocked by         clk [rising]

Instance / Net                          Pin       Pin               Arrival     Fan
Name                         Type       Name      Dir     Delay     Time        Out
-----------------------------------------------------------------------------------
clk                          Port       clk       In      0.000     0.000          
clk                          Net                                                1  
XLXI_16.CLKIN_IBUFG_INST     IBUFG      I         In                0.000          
XLXI_16.CLKIN_IBUFG_INST     IBUFG      O         Out     0.465     0.465          
CLKIN_IBUFG                  Net                                                1  
XLXI_16.DCM_INST             DCM        CLKIN     In                0.465          
XLXI_16.DCM_INST             DCM        CLK0      Out     0.000     0.465          
DCM_INST_CLK0                Net                                                1  
XLXI_16.CLK0_BUFG_INST       BUFG       I         In                0.465          
XLXI_16.CLK0_BUFG_INST       BUFG       O         Out     0.465     0.930          
clk_int                      Net                                                7  
XLXI_9                       tenths     CLK       In                0.930          
===================================================================================




====================================
Detailed Report for Clock: stopwatch|XLXI_16.CLK0_BUF_derived_clock
====================================



Starting Points with worst slack 
********************************

                                                   Arrival          
Instance            Type     Pin     Net           Time        Slack
                                                                    
--------------------------------------------------------------------
XLXI_5.start        FDC      Q       start         1.210       2.790
XLXI_5.stopped      FDC      Q       stopped       1.210       2.790
XLXI_5.zero         FDC      Q       zero          1.210       2.790
XLXI_5.counting     FDC      Q       counting      1.210       3.497
XLXI_5.stop         FDC      Q       stop          1.121       8.586
XLXI_5.rst          FDP      Q       rst           0.970       8.738
XLXI_5.clkout       FDC      Q       clken_int     1.121       8.879
====================================================================


Ending Points with worst slack 
******************************

                                                         Required           
Instance            Type       Pin       Net             Time         Slack 
                                                                            
----------------------------------------------------------------------------
XLXI_5.clkout       FDC        D         N_15_i          5.432        2.790 
XLXI_5.counting     FDC        D         N_6_i           10.432       8.497 
XLXI_5.start        FDC        D         N_2_i           10.432       8.497 
XLXI_5.stop         FDC        D         N_4_i           10.432       8.497 
XLXI_5.stopped      FDC        D         N_8_i           10.432       8.497 
XLXI_5.zero         FDC        D         next_zero10     10.432       8.497 
XLXI_9              tenths     CE        clken_int       10.000       8.879 
XLXI_15             AND2       I0        clken_int       10.000       8.879 
XLXI_9              tenths     AINIT     rst_int         10.000       9.031 
XLXI_12.I3          OR2        I1        clk_int         10.000       10.000
============================================================================



Worst Paths Information
***********************


Path information for path number 1: 
    - Setup time:                         4.568
    = Required time:                      5.432

    - Propagation  time:                  2.642
    = Slack (non-critical) :              2.790

    Starting point:                       XLXI_5.start / Q
    Ending point:                         XLXI_5.clkout / D
    The start point is clocked by         stopwatch|XLXI_16.CLK0_BUF_derived_clock [rising] on pin C
    The end   point is clocked by         stopwatch|XLXI_16.CLK0_BUF_derived_clock [rising] on pin C

Instance / Net                Pin      Pin               Arrival     Fan
Name               Type       Name     Dir     Delay     Time        Out
------------------------------------------------------------------------
XLXI_5.start       FDC        Q        Out     1.210     1.210          
start              Net                                               4  
XLXI_5.G_6         LUT3       I0       In                1.210          
XLXI_5.G_6         LUT3       O        Out     0.707     1.917          
G_6                Net                                               1  
XLXI_5.N_15_i      LUT4_L     I1       In                1.917          
XLXI_5.N_15_i      LUT4_L     LO       Out     0.725     2.642          
N_15_i             Net                                               1  
XLXI_5.clkout      FDC        D        In                2.642          
========================================================================


Path information for path number 2: 

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