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📄 lcd_top.srr

📁 液晶屏lcd1602的使用历程
💻 SRR
📖 第 1 页 / 共 5 页
字号:
                     Starting                                                                    Arrival          
Instance             Reference                            Type         Pin     Net               Time        Slack
                     Clock                                                                                        
------------------------------------------------------------------------------------------------------------------
U2.disp_count[1]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0C1     Q       disp_count[1]     0.627       0.720
U2.disp_count[0]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0C1     Q       disp_count_c0     0.627       0.918
U2.disp_count[2]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0C1     Q       disp_count[2]     0.627       1.137
U2.disp_count[3]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0C1     Q       disp_count[3]     0.627       1.495
U2.state[5]          Clock_Gen|clk_BUF_inferred_clock     DFN1C1       Q       state_0[5]        0.627       2.866
U2.state[6]          Clock_Gen|clk_BUF_inferred_clock     DFN1C1       Q       state[6]          0.627       3.626
U2.state[4]          Clock_Gen|clk_BUF_inferred_clock     DFN1C1       Q       state_0[4]        0.627       4.161
U2.state[1]          Clock_Gen|clk_BUF_inferred_clock     DFN1C1       Q       state[1]          0.627       5.840
U2.state[2]          Clock_Gen|clk_BUF_inferred_clock     DFN1C1       Q       state[2]          0.627       6.043
U2.state[7]          Clock_Gen|clk_BUF_inferred_clock     DFN1P1       Q       state_i_0[7]      0.627       6.071
==================================================================================================================


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

                          Starting                                                                         Required          
Instance                  Reference                            Type         Pin     Net                    Time         Slack
                          Clock                                                                                              
-----------------------------------------------------------------------------------------------------------------------------
U2.DB8[2]                 Clock_Gen|clk_BUF_inferred_clock     DFN1E0C1     D       N_123                  9.542        0.720
U2.DB8[0]                 Clock_Gen|clk_BUF_inferred_clock     DFN1E0C1     D       DB8_6[0]               9.571        0.931
U2.Data_First_Buf[1]      Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
U2.Data_First_Buf[5]      Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
U2.Data_First_Buf[9]      Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
U2.Data_First_Buf[13]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
U2.Data_First_Buf[14]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
U2.Data_First_Buf[16]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
U2.Data_First_Buf[17]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
U2.Data_First_Buf[18]     Clock_Gen|clk_BUF_inferred_clock     DFN1E0       E       state_RNIOSR4_0[4]     9.482        1.263
=============================================================================================================================



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


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

    - Propagation time:                      8.822
    = Slack (critical) :                     0.720

    Number of logic level(s):                6
    Starting point:                          U2.disp_count[1] / Q
    Ending point:                            U2.DB8[2] / D
    The start point is clocked by            Clock_Gen|clk_BUF_inferred_clock [rising] on pin CLK
    The end   point is clocked by            Clock_Gen|clk_BUF_inferred_clock [rising] on pin CLK

Instance / Net                            Pin      Pin               Arrival     No. of    
Name                         Type         Name     Dir     Delay     Time        Fan Out(s)
-------------------------------------------------------------------------------------------
U2.disp_count[1]             DFN1E0C1     Q        Out     0.627     0.627       -         
disp_count[1]                Net          -        -       1.007     -           4         
U2.disp_count_RNIIT02[3]     NOR2B        B        In      -         1.634       -         
U2.disp_count_RNIIT02[3]     NOR2B        Y        Out     0.534     2.168       -         
state_ns_o2_i_a3_0[6]        Net          -        -       0.274     -           1         
U2.disp_count_RNI2J14[2]     OR2B         B        In      -         2.442       -         
U2.disp_count_RNI2J14[2]     OR2B         Y        Out     0.534     2.976       -         
disp_count_RNI2J14[2]        Net          -        -       1.512     -           11        
U2.state_RNITNB4[5]          OR2B         B        In      -         4.487       -         
U2.state_RNITNB4[5]          OR2B         Y        Out     0.439     4.926       -         
N_155                        Net          -        -       0.328     -           2         
U2.state_RNIPSL4_0[6]        OR2A         A        In      -         5.255       -         
U2.state_RNIPSL4_0[6]        OR2A         Y        Out     0.396     5.651       -         
N_156                        Net          -        -       1.420     -           9         
U2.DB8_RNO_0[2]              OR2          B        In      -         7.071       -         
U2.DB8_RNO_0[2]              OR2          Y        Out     0.438     7.508       -         
N_585                        Net          -        -       0.274     -           1         
U2.DB8_RNO[2]                OA1B         A        In      -         7.782       -         
U2.DB8_RNO[2]                OA1B         Y        Out     0.766     8.548       -         
N_123                        Net          -        -       0.274     -           1         
U2.DB8[2]                    DFN1E0C1     D        In      -         8.822       -         
===========================================================================================
Total path delay (propagation time + setup) of 9.280 is 4.192(45.2%) logic and 5.088(54.8%) route.




====================================
Detailed Report for Clock: LCD_Top|clk_48M
====================================



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

               Starting                                           Arrival          
Instance       Reference           Type       Pin     Net         Time        Slack
               Clock                                                               
-----------------------------------------------------------------------------------
U3.cnt[1]      LCD_Top|clk_48M     DFN1C1     Q       cnt[1]      0.627       1.913
U3.cnt[0]      LCD_Top|clk_48M     DFN1C1     Q       cnt[0]      0.627       1.947
U3.cnt[2]      LCD_Top|clk_48M     DFN1C1     Q       cnt[2]      0.627       2.007
U3.cnt[3]      LCD_Top|clk_48M     DFN1C1     Q       cnt[3]      0.627       2.097
U3.cnt[4]      LCD_Top|clk_48M     DFN1C1     Q       cnt[4]      0.627       2.098
U3.cnt[15]     LCD_Top|clk_48M     DFN1C1     Q       cnt[15]     0.627       2.120
U3.cnt[5]      LCD_Top|clk_48M     DFN1C1     Q       cnt[5]      0.627       2.150
U3.cnt[9]      LCD_Top|clk_48M     DFN1C1     Q       cnt[9]      0.627       2.239
U3.cnt[10]     LCD_Top|clk_48M     DFN1C1     Q       cnt[10]     0.627       2.406
U3.cnt[7]      LCD_Top|clk_48M     DFN1C1     Q       cnt[7]      0.627       2.415
===================================================================================


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

               Starting                                             Required          
Instance       Reference           Type       Pin     Net           Time         Slack
               Clock                                                                  
--------------------------------------------------------------------------------------
U3.cnt[12]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[12]     9.542        1.913
U3.cnt[9]      LCD_Top|clk_48M     DFN1C1     D       cnt_3[9]      9.512        2.052
U3.cnt[10]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[10]     9.512        2.052
U3.cnt[13]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[13]     9.512        2.052
U3.cnt[17]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[17]     9.512        2.052
U3.cnt[18]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[18]     9.512        2.052
U3.cnt[19]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[19]     9.512        2.052
U3.cnt[21]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[21]     9.512        2.052
U3.cnt[22]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[22]     9.512        2.052
U3.cnt[24]     LCD_Top|clk_48M     DFN1C1     D       cnt_3[24]     9.512        2.052
======================================================================================



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


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

    - Propagation time:                      7.628
    = Slack (non-critical) :                 1.913

    Number of logic level(s):                5
    Starting point:                          U3.cnt[1] / Q
    Ending point:                            U3.cnt[12] / D
    The start point is clocked by            LCD_Top|clk_48M [rising] on pin CLK
    The end   point is clocked by            LCD_Top|clk_48M [rising] on pin CLK

Instance / Net                    Pin      Pin               Arrival     No. of    
Name                   Type       Name     Dir     Delay     Time        Fan Out(s)
-----------------------------------------------------------------------------------
U3.cnt[1]              DFN1C1     Q        Out     0.627     0.627       -         
cnt[1]                 Net        -        -       1.211     -           6         
U3.un6_cnt.I_16        AND3       B        In      -         1.838       -         
U3.un6_cnt.I_16        AND3       Y        Out     0.516     2.354       -         
U1\.DWACT_FINC_E[0]    Net        -        -       1.395     -           8         
U3.un6_cnt.I_62        AND3       A        In      -         3.749       -         
U3.un6_cnt.I_62        AND3       Y        Out     0.395     4.144       -         
U1\.DWACT_FINC_E[6]    Net        -        -       1.299     -           7         
U3.un6_cnt.I_72        NOR2B      B        In      -         5.442       -         
U3.un6_cnt.I_72        NOR2B      Y        Out     0.534     5.976       -         
N_70                   Net        -        -       0.274     -           1         
U3.un6_cnt.I_73        XOR2       A        In      -         6.250       -         
U3.un6_cnt.I_73        XOR2       Y        Out     0.415     6.665       -         
I_73                   Net        -        -       0.274     -           1         
U3.cnt_RNO[12]         NOR2B      A        In      -         6.939       -         
U3.cnt_RNO[12]         NOR2B      Y        Out     0.415     7.355       -         
cnt_3[12]              Net        -        -       0.274     -           1         
U3.cnt[12]             DFN1C1     D        In      -         7.628       -         
===================================================================================
Total path delay (propagation time + setup) of 8.087 is 3.361(41.6%) logic and 4.725(58.4%) route.



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

--------------------------------------------------------------------------------
Report for cell LCD_Top.verilog
  Core Cell usage:
              cell count     area count*area
              AND2    10      1.0       10.0
              AND3    42      1.0       42.0
              AO1C     1      1.0        1.0
              AX1E     1      1.0        1.0
              BUFF     3      1.0        3.0
            CLKINT     5      0.0        0.0
               GND     5      0.0        0.0
               INV     4      1.0        4.0
               MX2     5      1.0        5.0
              MX2B     3      1.0        3.0
              MX2C     3      1.0        3.0
              NOR2     5      1.0        5.0
             NOR2A   102      1.0      102.0
             NOR2B    29      1.0       29.0
             NOR3A     3      1.0        3.0
             NOR3C    10      1.0       10.0
              OA1A     1      1.0        1.0
              OA1B     1      1.0        1.0
              OAI1     1      1.0        1.0
               OR2    65      1.0       65.0
              OR2A     4      1.0        4.0
              OR2B     5      1.0        5.0

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