Answers Database
1.5i Virtex PAR - Router is routing backbone net to IOB CLK pins incorrectly.
Record #5554
Product Family: Software
Product Line: FPGA Implementation
Product Part: par
Product Version: 1.5i
Problem Title:
1.5i Virtex PAR - Router is routing backbone net to IOB CLK pins incorrectly.
Problem Description:
The router is routing a backbone clock net to the IOB CLK pins incorrectly. It is routing off of ve
rtical long lines instead of the backbone horizontal. This increases the skew to the IOBs by about
3.0ns or 50% of the total delay.
Solution 1:
A fix for this problem is included in the 1.5i Service Pack 1. For details
on this Service Pack see http://www.xilinx.com/techdocs/5514.htm
End of Record #5554 - Last Modified: 02/20/99 20:35 | 
