Answers Database
LogiCORE PCI: Guide does not work if M/S_SRC_EN signals are unused
Record #5055
Product Family: Documentation
Product Line: PCI Apps
Product Part: PCI Design Solutions
Problem Title:
LogiCORE PCI: Guide does not work if M/S_SRC_EN signals are unused
Problem Description:
Urgency: Standard
General Description:
Guide does not work if the M_SRC_EN and S_SRC_EN signals are unused.
Solution 1:
If the user application is very simple (i.e. - no burst), then
it does not require use of the M_SRC_EN and S_SRC_EN signals
from the core. However, if BOTH of the signals are not used,
then MAP will trim the logic which will affect the guiding of
one of the critical signals
The workaround is to "save" either M_SRC_EN or S_SRC_EN.
Note: This is not valid for PCI designs for Virtex running at 33 MHz
as guide files are not used.
End of Record #5055 - Last Modified: 07/30/99 11:58 |
