cnt24.tan.rpt

用verilog实现的记时器程序,在Quartus II上编译通过并成功运行

Timing Analyzer report for CNT24
Tue Oct 16 17:00:42 2007
Version 6.0 Build 178 04/27/2006 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'
  6. Clock Setup: 'js'
  7. tco
  8. Timing Analyzer Messages



----------------
; Legal Notice ;
----------------
Copyright (C) 1991-2006 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 tco               ; N/A   ; None          ; 20.863 ns                        ; q_temp[5] ; Q[1]      ; js         ; --       ; 0            ;
; Clock Setup: 'js'            ; N/A   ; None          ; 408.16 MHz ( period = 2.450 ns ) ; q_temp[0] ; q_temp[4] ; js         ; js       ; 0            ;
; Clock Setup: 'clk'           ; N/A   ; None          ; 408.16 MHz ( period = 2.450 ns ) ; q_temp[0] ; q_temp[4] ; clk        ; clk      ; 0            ;
; Total number of failed paths ;       ;               ;                                  ;           ;           ;            ;          ; 0            ;
+------------------------------+-------+---------------+----------------------------------+-----------+-----------+------------+----------+--------------+


+------------------------------------------------------------------------------------------------------+
; Timing Analyzer Settings                                                                             ;
+-------------------------------------------------------+--------------------+------+----+-------------+
; Option                                                ; Setting            ; From ; To ; Entity Name ;
+-------------------------------------------------------+--------------------+------+----+-------------+
; Device Name                                           ; EP2C35F672C6       ;      ;    ;             ;
; Timing Models                                         ; Final              ;      ;    ;             ;
; Number of source nodes to report per destination node ; 10                 ;      ;    ;             ;
; Number of destination nodes to report                 ; 10                 ;      ;    ;             ;
; Number of paths to report                             ; 200                ;      ;    ;             ;
; Report Minimum Timing Checks                          ; Off                ;      ;    ;             ;
; Use Fast Timing Models                                ; Off                ;      ;    ;             ;
; Report IO Paths Separately                            ; Off                ;      ;    ;             ;
; Default hold multicycle                               ; Same As Multicycle ;      ;    ;             ;
; Cut paths between unrelated clock domains             ; On                 ;      ;    ;             ;
; Cut off read during write signal paths                ; On                 ;      ;    ;             ;
; Cut off feedback from I/O pins                        ; On                 ;      ;    ;             ;
; Report Combined Fast/Slow Timing                      ; Off                ;      ;    ;             ;
; Ignore Clock Settings                                 ; Off                ;      ;    ;             ;
; Analyze latches as synchronous elements               ; On                 ;      ;    ;             ;
; Enable Recovery/Removal analysis                      ; Off                ;      ;    ;             ;
; Enable Clock Latency                                  ; Off                ;      ;    ;             ;
; Use TimeQuest Timing Analyzer                         ; Off                ;      ;    ;             ;
+-------------------------------------------------------+--------------------+------+----+-------------+


+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
; Clock Settings Summary                                                                                                                                                             ;
+-----------------+--------------------+----------+------------------+---------------+--------------+----------+-----------------------+---------------------+--------+--------------+
; Clock Node Name ; Clock Setting Name ; Type     ; Fmax Requirement ; Early Latency ; Late Latency ; Based on ; Multiply Base Fmax by ; Divide Base Fmax by ; Offset ; Phase offset ;
+-----------------+--------------------+----------+------------------+---------------+--------------+----------+-----------------------+---------------------+--------+--------------+
; clk             ;                    ; User Pin ; None             ; 0.000 ns      ; 0.000 ns     ; --       ; N/A                   ; N/A                 ; N/A    ;              ;
; js              ;                    ; User Pin ; None             ; 0.000 ns      ; 0.000 ns     ; --       ; N/A                   ; N/A                 ; N/A    ;              ;
+-----------------+--------------------+----------+------------------+---------------+--------------+----------+-----------------------+---------------------+--------+--------------+


+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
; Clock Setup: 'clk'                                                                                                                                                                         ;
+-------+------------------------------------------------+-----------+-----------+------------+----------+-----------------------------+---------------------------+-------------------------+
; Slack ; Actual fmax (period)                           ; From      ; To        ; From Clock ; To Clock ; Required Setup Relationship ; Required Longest P2P Time ; Actual Longest P2P Time ;
+-------+------------------------------------------------+-----------+-----------+------------+----------+-----------------------------+---------------------------+-------------------------+
; N/A   ; 408.16 MHz ( period = 2.450 ns )               ; q_temp[0] ; q_temp[4] ; clk        ; clk      ; None                        ; None                      ; 2.236 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[1] ; q_temp[4] ; clk        ; clk      ; None                        ; None                      ; 2.165 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[2] ; q_temp[4] ; clk        ; clk      ; None                        ; None                      ; 2.075 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[0] ; q_temp[3] ; clk        ; clk      ; None                        ; None                      ; 2.027 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[1] ; q_temp[3] ; clk        ; clk      ; None                        ; None                      ; 1.956 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[3] ; q_temp[4] ; clk        ; clk      ; None                        ; None                      ; 1.888 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[2] ; q_temp[3] ; clk        ; clk      ; None                        ; None                      ; 1.866 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[5] ; q_temp[3] ; clk        ; clk      ; None                        ; None                      ; 1.799 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[5] ; q_temp[4] ; clk        ; clk      ; None                        ; None                      ; 1.795 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[0] ; q_temp[7] ; clk        ; clk      ; None                        ; None                      ; 1.765 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[6] ; q_temp[3] ; clk        ; clk      ; None                        ; None                      ; 1.748 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; q_temp[6] ; q_temp[4] ; clk        ; clk      ; None                        ; None                      ; 1.744 ns                ;