key.tan.rpt

用VHDL实现的键盘扫描程序 可以稍微修改就可使用

Timing Analyzer report for key
Thu Aug 11 09:16:20 2005
Version 5.0 Build 148 04/26/2005 SJ Full Version


---------------------
; Table of Contents ;
---------------------
  1. Legal Notice
  2. Timing Analyzer Summary
  3. Timing Analyzer Settings
  4. Clock Settings Summary
  5. Clock Setup: 'clk_in'
  6. tsu
  7. tco
  8. th
  9. Timing Analyzer Messages



----------------
; Legal Notice ;
----------------
Copyright (C) 1991-2005 Altera Corporation
Your use of Altera Corporation's design tools, logic functions 
and other software and tools, and its AMPP partner logic       
functions, and any output files any of the foregoing           
(including device programming or simulation files), and any    
associated documentation or information are expressly subject  
to the terms and conditions of the Altera Program License      
Subscription Agreement, Altera MegaCore Function License       
Agreement, or other applicable license agreement, including,   
without limitation, that your use is for the sole purpose of   
programming logic devices manufactured by Altera and sold by   
Altera or its authorized distributors.  Please refer to the    
applicable agreement for further details.



+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
; Timing Analyzer Summary                                                                                                                                                                                                                                                ;
+------------------------------+-------+---------------+----------------------------------+-------------------------------------------------------------------+-------------------------------------------------------------------+------------+----------+--------------+
; Type                         ; Slack ; Required Time ; Actual Time                      ; From                                                              ; To                                                                ; From Clock ; To Clock ; Failed Paths ;
+------------------------------+-------+---------------+----------------------------------+-------------------------------------------------------------------+-------------------------------------------------------------------+------------+----------+--------------+
; Worst-case tsu               ; N/A   ; None          ; 10.800 ns                        ; stop                                                              ; lpm_counter:temp_couter_rtl_1|alt_counter_f10ke:wysi_counter|q[6] ;            ; clk_in   ; 0            ;
; Worst-case tco               ; N/A   ; None          ; 9.700 ns                         ; clk_out~reg0                                                      ; clk_out                                                           ; clk_in     ;          ; 0            ;
; Worst-case th                ; N/A   ; None          ; 0.900 ns                         ; data_in_h[1]                                                      ; temp_data_in_h[1]                                                 ;            ; clk_in   ; 0            ;
; Clock Setup: 'clk_in'        ; N/A   ; None          ; 57.47 MHz ( period = 17.400 ns ) ; lpm_counter:temp_couter_rtl_1|alt_counter_f10ke:wysi_counter|q[6] ; lpm_counter:temp_couter_rtl_1|alt_counter_f10ke:wysi_counter|q[1] ; clk_in     ; clk_in   ; 0            ;
; Total number of failed paths ;       ;               ;                                  ;                                                                   ;                                                                   ;            ;          ; 0            ;
+------------------------------+-------+---------------+----------------------------------+-------------------------------------------------------------------+-------------------------------------------------------------------+------------+----------+--------------+