Collang2
Junior Member level 3
Hello.
While studying OCV(On chip variation), I learned about CPP(Clock Path Pessimism) and CRP(clock reconvergence pessimism).
However, some blogs say that two are the same, and others argue that two are different.
These are same : (http://www.vlsi-expert.com/2011/02/clock-reconvergence-pessimism-crp-basic.html)
CRPR and CPPR should not be confused to be one and the same : (https://www.design-reuse.com/articles/40155/clock-path-pessimism-statistical-vs-logical.html)
When there is a difference in delay in one path by OCV, I think there is CPP(Clock Path Pessimism).
1. Is this right?
2. I want to understand the difference between CPP and CRP.
While studying OCV(On chip variation), I learned about CPP(Clock Path Pessimism) and CRP(clock reconvergence pessimism).
However, some blogs say that two are the same, and others argue that two are different.
These are same : (http://www.vlsi-expert.com/2011/02/clock-reconvergence-pessimism-crp-basic.html)
CRPR and CPPR should not be confused to be one and the same : (https://www.design-reuse.com/articles/40155/clock-path-pessimism-statistical-vs-logical.html)
When there is a difference in delay in one path by OCV, I think there is CPP(Clock Path Pessimism).
1. Is this right?
2. I want to understand the difference between CPP and CRP.