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📄 lcd_top.srr

📁 液晶屏lcd1602的使用历程
💻 SRR
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Finished generic timing optimizations - Pass 1 (Time elapsed 0h:00m:02s; Memory used current: 88MB peak: 89MB)

Starting Early Timing Optimization (Time elapsed 0h:00m:02s; Memory used current: 88MB peak: 89MB)

Finished Early Timing Optimization (Time elapsed 0h:00m:02s; Memory used current: 88MB peak: 89MB)

Finished generic timing optimizations - Pass 2 (Time elapsed 0h:00m:02s; Memory used current: 88MB peak: 89MB)

Finished preparing to map (Time elapsed 0h:00m:03s; Memory used current: 89MB peak: 89MB)


High Fanout Net Report
**********************

Driver Instance / Pin Name                   Fanout, notes                 
---------------------------------------------------------------------------
U2.state[5] / Q                              83                            
U2.state[4] / Q                              88                            
U2.un1_Data_Second_Buf_2_sqmuxa_i[0] / Y     84                            
U2.un1_Data_First_Buf_1_sqmuxa_i / Y         90                            
rst_pad / Y                                  36 : 33 asynchronous set/reset
===========================================================================

Promoting Net clk_LCD on CLKINT  U1.clk_BUF_inferred_clock
Promoting Net U2.N_22 on CLKINT  I_3
Promoting Net U2.state[4] on CLKINT  I_4
Promoting Net U2.N_566 on CLKINT  I_5
Promoting Net U2.state[5] on CLKINT  I_6
Buffering rst_c, fanout 36 segments 2
Finished technology mapping (Time elapsed 0h:00m:03s; Memory used current: 88MB peak: 89MB)

Finished technology timing optimizations and critical path resynthesis (Time elapsed 0h:00m:03s; Memory used current: 88MB peak: 89MB)


Added 1 Buffers
Added 0 Cells via replication
	Added 0 Sequential Cells via replication
	Added 0 Combinational Cells via replication
Finished restoring hierarchy (Time elapsed 0h:00m:03s; Memory used current: 88MB peak: 89MB)

Writing Analyst data base D:\Actelprj\LCD_1602\synthesis\LCD_Top.srm
@N: BN225 |Writing default property annotation file D:\Actelprj\LCD_1602\synthesis\LCD_Top.map.
Finished Writing Netlist Databases (Time elapsed 0h:00m:03s; Memory used current: 87MB peak: 89MB)

Writing EDIF Netlist and constraint files
Version 9.4A1
Finished Writing EDIF Netlist and constraint files (Time elapsed 0h:00m:03s; Memory used current: 87MB peak: 89MB)

Found clock Clock_Gen|U1.clk_counter_inferred_clock with period 10.00ns 
Found clock Clock_Gen|clk_BUF_inferred_clock with period 10.00ns 


##### START OF TIMING REPORT #####[
# Timing Report written on Thu Jan 29 16:31:09 2009
#


Top view:               LCD_Top
Library name:           fusion
Operating conditions:   COMWC-1 ( T = 70.0, V = 1.42, P = 1.48, tree_type = balanced_tree )
Requested Frequency:    100.0 MHz
Wire load mode:         top
Wire load model:        fusion
Paths requested:        5
Constraint File(s):    
@N: MT320 |This timing report estimates place and route data. Please look at the place and route timing report for final timing..

@N: MT322 |Clock constraints cover only FF-to-FF paths associated with the clock..



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


Worst slack in design: 0.665

                                            Requested     Estimated     Requested     Estimated               Clock        Clock              
Starting Clock                              Frequency     Frequency     Period        Period        Slack     Type         Group              
----------------------------------------------------------------------------------------------------------------------------------------------
Clock_Gen|U1.clk_counter_inferred_clock     100.0 MHz     148.0 MHz     10.000        6.755         3.245     inferred     Inferred_clkgroup_1
Clock_Gen|clk_BUF_inferred_clock            100.0 MHz     107.1 MHz     10.000        9.335         0.665     inferred     Inferred_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
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Clock_Gen|clk_BUF_inferred_clock         Clock_Gen|clk_BUF_inferred_clock         |  10.000      0.665  |  No paths    -      |  No paths    -      |  No paths    -    
Clock_Gen|U1.clk_counter_inferred_clock  Clock_Gen|U1.clk_counter_inferred_clock  |  10.000      3.245  |  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: Clock_Gen|U1.clk_counter_inferred_clock
====================================



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

                Starting                                                                    Arrival          
Instance        Reference                                   Type       Pin     Net          Time        Slack
                Clock                                                                                        
-------------------------------------------------------------------------------------------------------------
U1.count[1]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[1]     0.627       3.245
U1.count[2]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[2]     0.627       3.296
U1.count[0]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[0]     0.627       3.366
U1.count[3]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[3]     0.494       3.511
U1.count[6]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[6]     0.627       3.639
U1.count[4]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[4]     0.627       3.648
U1.count[5]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[5]     0.627       3.700
U1.count[7]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[7]     0.494       4.155
U1.count[9]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[9]     0.494       4.429
U1.count[8]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1     Q       count[8]     0.627       4.797
=============================================================================================================


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

                Starting                                                                        Required          
Instance        Reference                                   Type         Pin     Net            Time         Slack
                Clock                                                                                             
------------------------------------------------------------------------------------------------------------------
U1.count[9]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       count_3[9]     9.542        3.245
U1.count[0]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       count_3[0]     9.512        3.511
U1.count[3]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       count_3[3]     9.512        3.511
U1.count[5]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       count_3[5]     9.512        3.511
U1.count[6]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       count_3[6]     9.512        3.511
U1.count[7]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       count_3[7]     9.512        3.511
U1.count[8]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       count_3[8]     9.512        3.511
U1.clk_BUF      Clock_Gen|U1.clk_counter_inferred_clock     DFN1E0C1     E       clk_BUF6       9.482        4.289
U1.count[4]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       I_20           9.542        4.602
U1.count[2]     Clock_Gen|U1.clk_counter_inferred_clock     DFN1C1       D       I_9            9.542        6.330
==================================================================================================================



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


Path information for path number 1: 
    Requested Period:                        10.000
    - Setup time:                            0.458
    = Required time:                         9.542

    - Propagation time:                      6.297
    = Slack (non-critical) :                 3.245

    Number of logic level(s):                5
    Starting point:                          U1.count[1] / Q
    Ending point:                            U1.count[9] / D
    The start point is clocked by            Clock_Gen|U1.clk_counter_inferred_clock [rising] on pin CLK
    The end   point is clocked by            Clock_Gen|U1.clk_counter_inferred_clock [rising] on pin CLK

Instance / Net                     Pin      Pin               Arrival     No. of    
Name                    Type       Name     Dir     Delay     Time        Fan Out(s)
------------------------------------------------------------------------------------
U1.count[1]             DFN1C1     Q        Out     0.627     0.627       -         
count[1]                Net        -        -       1.089     -           5         
U1.un6_count_1.I_16     AND3       B        In      -         1.716       -         

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