freq2_2.tan.rpt

奇数分频:2.2倍分频,其他任意奇数倍的分频可扩展得到.

Classic Timing Analyzer report for freq2_2
Sun Dec 21 15:14:06 2008
Quartus II Version 8.0 Build 215 05/29/2008 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. tco
  7. Timing Analyzer Messages



----------------
; Legal Notice ;
----------------
Copyright (C) 1991-2008 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 from 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          ; 6.068 ns                                       ; freq2_2~reg0 ; freq2_2 ; clk        ; --       ; 0            ;
; Clock Setup: 'clk'           ; N/A   ; None          ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; count[0]     ; freq[1] ; clk        ; clk      ; 0            ;
; Total number of failed paths ;       ;               ;                                                ;              ;         ;            ;          ; 0            ;
+------------------------------+-------+---------------+------------------------------------------------+--------------+---------+------------+----------+--------------+


+--------------------------------------------------------------------------------------------------------------------+
; Timing Analyzer Settings                                                                                           ;
+---------------------------------------------------------------------+--------------------+------+----+-------------+
; Option                                                              ; Setting            ; From ; To ; Entity Name ;
+---------------------------------------------------------------------+--------------------+------+----+-------------+
; Device Name                                                         ; EP2C35F672C6       ;      ;    ;             ;
; Timing Models                                                       ; Final              ;      ;    ;             ;
; 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                ;      ;    ;             ;
; Minimum Core Junction Temperature                                   ; 0                  ;      ;    ;             ;
; Maximum Core Junction Temperature                                   ; 85                 ;      ;    ;             ;
; 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                ;      ;    ;             ;
; Perform Multicorner Analysis                                        ; On                 ;      ;    ;             ;
; Reports the worst-case path for each clock domain and analysis      ; Off                ;      ;    ;             ;
; Removes common clock path pessimism (CCPP) during slack computation ; 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    ;              ;
+-----------------+--------------------+----------+------------------+---------------+--------------+----------+-----------------------+---------------------+--------+--------------+


+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
; 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   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; count[0]     ; freq[1]      ; clk        ; clk      ; None                        ; None                      ; 2.045 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; count[0]     ; freq[2]      ; clk        ; clk      ; None                        ; None                      ; 2.044 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; count[0]     ; count[0]     ; clk        ; clk      ; None                        ; None                      ; 1.979 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; count[0]     ; count[1]     ; clk        ; clk      ; None                        ; None                      ; 1.978 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; count[0]     ; freq2_2~reg0 ; clk        ; clk      ; None                        ; None                      ; 1.921 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; count[0]     ; freq[0]      ; clk        ; clk      ; None                        ; None                      ; 1.919 ns                ;
; N/A   ; Restricted to 420.17 MHz ( period = 2.380 ns ) ; freq[0]      ; count[0]     ; clk        ; clk      ; None                        ; None                      ; 1.909 ns                ;