Answers Database
LogiCORE PCI32 4000XLT: Incorrect 'MIN' clock delay value used to compute the setup time
Record #5272
Product Family: Documentation
Product Line: PCI Apps
Product Part: PCI Design Solutions
Problem Title:
LogiCORE PCI32 4000XLT: Incorrect 'MIN' clock delay value used to compute the setup time
Problem Description:
Urgency: Standard
General Description:
The "min" clock delay used to compute the SETUP timing
constraints in the 62xb431_1.ucf file is incorrect.
The value, 3.8ns should be used instead of 3.4ns.
Solution 1:
As 3.4ns results in a tighter constraint and the SETUP
timespecs are fully controlled by the guide file, there is no
issue.
No change in the UCF file is required
End of Record #5272 - Last Modified: 10/01/99 14:34 |
