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static and dynamic (power + IR) analysis

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Hi,

I wanted to know what is difference between followings

1. Power analysis and IR drop analysis

2. Static power analysis and Dynamic power analysis

3. Static IR drop and Dynamic IR drop analysis

what parameters or constraints we have to be considered?

how to provide leakage current or power while doing analysis?

why we should do Power or IR analysis at the stage of Floorplan and what are paramaters will be considered here?
and how it is different from the post layout (routing done) stage?

Please suggest me or any docs or links

Thanks & Regards,
KulPrashant 


Originally posted in cdnusers.org by kulprashant05

  • Maybe this whitepaper could be a kickoff for your IRdrop questions:
    http://www.cadence.com/whitepapers/4101_PowerGridVerif_WP.pdf

    Cristiano


    Originally posted in cdnusers.org by clsantos

  • 1. power analysis is power estimation while IR is the ir drop estimation.
    2. static power is the average power consumed in a ckt. Dynamic is the peak power consumed in a ckt including all transient conditions. Dynamic is more accurate.
    3. static ir analyis - based on average power of each cell the ir drop to the cell is calculated.
    dynamic - ir drop at different instance of time is avaialabe for every cell.
    obviously dynamic is more accurate especially in shrinking geomtry nodes.
    leakage power if from the libraries. floorplan stage is just for basic idea and its nowhere accurate as the post layout stage. clocktree makes a significant impact to the
    grid.

    -regds
    prakash


    Originally posted in cdnusers.org by pjayasekharan

  • Thanks Prakash & Cristiano.

    Regards,
    Prashant


    Originally posted in cdnusers.org by kulprashant05

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