ex1.tim

来自「[VHDL经典设计26例]--在xilinx芯片上调试通过--[01--1位全加」· TIM 代码 · 共 55 行

                           Performance Summary Report
                           --------------------------

Design:     ex1
Device:     XC95108-7-PC84
Speed File: Version 3.0
Program:    Timing Report Generator:  version E.38
Date:       Tue Mar 11 11:19:03 2008

Performance Summary: 

Pad to Pad (tPD)                          :          7.5ns (1 macrocell levels)
Pad 'b' to Pad 'c_out'                                            

--------------------------------------------------------------------------------
                            Pad to Pad (tPD) (nsec)

\ From      a     b     c
 \                      _
  \                     i
   \                    n
    \                    
     \                   
      \                  
  To   \------------------

c_out     7.5   7.5   7.5
sum       7.5   7.5   7.5

Path Type Definition: 

Pad to Pad (tPD) -                        Reports pad to pad paths that start 
                                          at input pads and end at output pads. 
                                          Paths are not traced through 
                                          registers. 

Clock Pad to Output Pad (tCO) -           Reports paths that start at input 
                                          pads trace through clock inputs of 
                                          registers and end at output pads. 
                                          Paths are not traced through PRE/CLR 
                                          inputs of registers. 

Setup to Clock at Pad (tSU) -             Reports external setup time of data 
                                          to clock at pad. Data path starts at 
                                          an input pad and end at register D/T 
                                          input. Clock path starts at input pad 
                                          and ends at the register clock input. 
                                          Paths are not traced through 
                                          registers. 

Clock to Setup (tCYC) -                   Register to register cycle time. 
                                          Include source register tCO and 
                                          destination register tSU.