ram_256.tan.rpt

在Quartus中实现256的RAM

Timing Analyzer report for ram_256
Thu May 31 10:55:57 2007
Version 5.1 Build 176 10/26/2005 SJ Full Version


---------------------
; Table of Contents ;
---------------------
  1. Legal Notice
  2. Timing Analyzer Summary
  3. Timing Analyzer Settings
  4. Clock Settings Summary
  5. tsu
  6. tco
  7. tpd
  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          ; 6.463 ns    ; cs         ; sram[0][7]  ; --         ; we       ; 0            ;
; Worst-case tco               ; N/A   ; None          ; 6.687 ns    ; sram[0][4] ; data_out[4] ; we         ; --       ; 0            ;
; Worst-case tpd               ; N/A   ; None          ; 11.661 ns   ; cs         ; data_out[3] ; --         ; --       ; 0            ;
; Worst-case th                ; N/A   ; None          ; -1.728 ns   ; we         ; sram[0][7]  ; --         ; we       ; 0            ;
; Total number of failed paths ;       ;               ;             ;            ;             ;            ;          ; 0            ;
+------------------------------+-------+---------------+-------------+------------+-------------+------------+----------+--------------+


+------------------------------------------------------------------------------------------------------+
; Timing Analyzer Settings                                                                             ;
+-------------------------------------------------------+--------------------+------+----+-------------+
; Option                                                ; Setting            ; From ; To ; Entity Name ;
+-------------------------------------------------------+--------------------+------+----+-------------+
; Device Name                                           ; EP1C3T144C8        ;      ;    ;             ;
; 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                ;      ;    ;             ;
+-------------------------------------------------------+--------------------+------+----+-------------+


+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
; 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 ;
+-----------------+--------------------+----------+------------------+---------------+--------------+----------+-----------------------+---------------------+--------+--------------+
; we              ;                    ; User Pin ; None             ; 0.000 ns      ; 0.000 ns     ; --       ; N/A                   ; N/A                 ; N/A    ;              ;
+-----------------+--------------------+----------+------------------+---------------+--------------+----------+-----------------------+---------------------+--------+--------------+


+------------------------------------------------------------------------+
; tsu                                                                    ;
+-------+--------------+------------+------------+------------+----------+
; Slack ; Required tsu ; Actual tsu ; From       ; To         ; To Clock ;
+-------+--------------+------------+------------+------------+----------+
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][0] ; we       ;
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][1] ; we       ;
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][2] ; we       ;
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][3] ; we       ;
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][4] ; we       ;
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][5] ; we       ;
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][6] ; we       ;
; N/A   ; None         ; 6.463 ns   ; cs         ; sram[0][7] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][0] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][1] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][2] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][3] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][4] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][5] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][6] ; we       ;
; N/A   ; None         ; 5.880 ns   ; adr[0]     ; sram[0][7] ; we       ;
; N/A   ; None         ; 4.543 ns   ; data_in[3] ; sram[0][3] ; we       ;
; N/A   ; None         ; 4.427 ns   ; data_in[4] ; sram[0][4] ; we       ;
; N/A   ; None         ; 4.404 ns   ; data_in[7] ; sram[0][7] ; we       ;
; N/A   ; None         ; 4.221 ns   ; data_in[5] ; sram[0][5] ; we       ;
; N/A   ; None         ; 4.197 ns   ; data_in[0] ; sram[0][0] ; we       ;
; N/A   ; None         ; 3.918 ns   ; data_in[6] ; sram[0][6] ; we       ;
; N/A   ; None         ; 2.279 ns   ; data_in[1] ; sram[0][1] ; we       ;
; N/A   ; None         ; 2.231 ns   ; data_in[2] ; sram[0][2] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][0] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][1] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][2] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][3] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][4] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][5] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][6] ; we       ;
; N/A   ; None         ; 1.780 ns   ; we         ; sram[0][7] ; we       ;
+-------+--------------+------------+------------+------------+----------+


+---------------------------------------------------------------------------+
; tco                                                                       ;
+-------+--------------+------------+------------+-------------+------------+
; Slack ; Required tco ; Actual tco ; From       ; To          ; From Clock ;
+-------+--------------+------------+------------+-------------+------------+
; N/A   ; None         ; 6.687 ns   ; sram[0][4] ; data_out[4] ; we         ;
; N/A   ; None         ; 6.685 ns   ; sram[0][5] ; data_out[5] ; we         ;
; N/A   ; None         ; 6.685 ns   ; sram[0][3] ; data_out[3] ; we         ;