When I run the TSI report from Timing Analyzer, the following information is reported:
Timing constraint: OFFSET = IN 20 nS BEFORE COMP "clk"
Section 1: Sources and destinations covered exclusively by the current constraint.
I$16 I$17 I$8
ff1d (Timegroup(s): clk) ff1s (Timegroup(s): clk)
ff1s (Timegroup(s): clk) ff2d (Timegroup(s): clk)
ff2s (Timegroup(s): clk) ff2s (Timegroup(s): clk)
The source and destination names do not match up with TRCE.
This problem is fixed in the latest 5.1i Service Pack, available at:
The first service pack containing the fix is 5.1i Service Pack 1.