Answers Database
M1.5: Timing Constraint Priority is being ignored for FROM:THRU:TO.
Record #4910
Product Family: Software
Product Line: Merged Core
Product Part: Timing
Problem Title:
M1.5: Timing Constraint Priority is being ignored for FROM:THRU:TO.
Problem Description:
Urgency: Standard
General Description: In the M1.5 timing software the FROM:THRU:TO has the same priority as
the FROM:TO. This can cause the FROM:THRU:TO to be ignored when applying the
constraints. For example:
TIMESPEC TS_01 = FROM:FFS:THRU:NET:TO:FFS:20; has the same priority as
TIMESPEC TS_02 = FROM:FFS:TO:FFS:10; and TS02 could override TS_01.
Solution 1:
To resolve this issue apply a priority to the FROM:THRU:TO constraint. For example:
TIMESPEC TS_01 = FROM:FFS:THRU:NET:TO:FFS:20:PRIORITY:1;
This is fixed in the next release, which is 2.1i
End of Record #4910 - Last Modified: 05/19/99 14:17 |
