i would like to replace a FF of a particular pin to reduce the delay in datapath...
At wat stage should i change the FF of a particular pin ???
i tried it after fix clock and then did fix wire and fix opt final....but the slack increased a lot...
can anybody help me in this??
i would like to replace a FF of a particular pin to reduce the delay in datapath...
At wat stage should i change the FF of a particular pin ???
i tried it after fix clock and then did fix wire and fix opt final....but the slack increased a lot...
can anybody help me in this??
Can you clarify a bit? What kind of FF are you swapping for what new FF and what is the difference? How do you expect this to improve datapath delay? Does the new FF have less setup time requirement or something? Sorry, your question is not clear to me.
Higher drive strength cells most likely have bigger input cap, which can cause slew violation for the other cells driving this cell. You need to run a whole round of sizing, re-buffering to fix it.