02-05-2010 02:54 AM
02-05-2010 03:10 PM
Skew in the timing report is computed for each path. A path is a combination of source and
destination. Usually internal paths start on a clock edge at the source flip-flop and end at
a clock edge on the destination flip-flop. The path delay is clock to Q for the source flip-flop
plus any routing delays and combinatorial delays to the D of the destination flip-flop plus the
setup time required by the destination flip-flop. The skew is the difference in arrival of the
clock at the source flip-flop vs. the destination flip-flop.
HTH,
Gabor