Answers Database
XC5200: Speed files are now available on the web
Record #2858
Product Family: Hardware
Product Line: 5200
Product Part: 5200
Problem Title:
XC5200: Speed files are now available on the web
Problem Description:
Urgency: Standard
General Description:
Final -5 and -6 speedfiles as well as preliminary
-3 and -4 speedfiles are available on the web at:
http://www.xilinx.com/support/troubleshoot/htm_index/sw_speed_files.htm
Solution 1:
-3/-4 Changes from Advance to Preliminary
XC5200-3/-4 specs and speed files have been extended from the XC5210 only to the
entire family. The Advance specs have been updated in the datasheet and are now
Preliminary. The new XC5210-4 speed file is approximately 5-10% faster overall.
-5/-6 Changes from Preliminary to Final
The Preliminary pin-to-pin specs for -5/-6 have been changed to the Final specs in the
new datasheet. The most common path used, using the IOB delay element, has been
clarified by adding a new spec, tPSUL. tPSUL is the path through the CLB look-up table,
while tPSU is the path through the CLB direct input to the flip-flop. The setup and hold
times for the path when NODELAY has been chosen on the IOB have been increased
from the original Preliminary specs. Note that these changes have no effect on the
speed file, which did not change in going from Preliminary to Final. Use the new speed
files and data sheet pin-to-pin specs when analyzing timing for the XC5200 family.
End of Record #2858 - Last Modified: 09/29/99 10:09 |
