Answers Database
LogiCORE PCI: What loads should be used when calculating maximum clock-to-out timing?
Record #5299
Product Family: Documentation
Product Line: PCI Apps
Product Part: PCI Frequently Asked Questions
Problem Title:
LogiCORE PCI: What loads should be used when calculating maximum clock-to-out timing?
Problem Description:
Urgency: Standard
General Description:
What loads should be used when calculating maximum
clock-to-out timing?
Solution 1:
The 5.0v PCI spec calls for the output buffer to be loaded
with 50pF when measuring clock-to-out timing.
The 3.3v PCI spec (including the 66MHz spec) calls for the
output buffer to be loaded with 10pF with a 25 ohm resistor
in parallel
End of Record #5299 - Last Modified: 02/23/99 12:54 | 
