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Timing Checks in primetime

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kishoresai1996

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What is order of fixing these violations
setup, hold, max.tran and max-cap? and why?
 
What is order of fixing these violations
setup, hold, max.tran and max-cap? and why?

depends on what step of the flow you are at. Hold is looked at early, but only fixed near the end. Setup is addressed much earlier and at every step.

maxTran and maxCap are very different in nature. They relate to library characterization and the boundaries in which you trust your standard cells to operate. You can push maxTran to help with integrity issues at the expense of power (sometimes). My point is... maxTran and maxCap have a trade-off nature to them. You can enforce these two as early as logic synthesis.
 

Think that i have a post routed database , and all the physical implementation is done,
Now what is the most preferrable order to fix these violations?
 

Setup then hold is the classical way. Some tools do both a the same time.
 

First go with X-talk noise/delay and Transition, then setup and finally hold.
 

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