Answers Database
1.5i 4KE Map - Map may incorrectly trim OUTFFTs that are pemanently active.
Record #4974
Problem Title:
1.5i 4KE Map - Map may incorrectly trim OUTFFTs that are pemanently active.
Problem Description:
Urgency: standard
General Description:
pins attached to OUTFFT with the T tied low (on) in xnf file
are being trimmed. Example design received just proves it.
Customer cannot just use OUTFFs because really design may be toggling T of OUTFFT.
Solution 1:
This problem can be worked around by placing a nomerge attribute on
the TBUF control net. This can be done in the .ucf file:
NET "netname" KEEP ;
End of Record #4974 - Last Modified: 04/16/99 15:15 | 
