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# static and dynamic (power + IR) analysis

Last post Sat, Sep 1 2007 5:26 AM by archive. 3 replies.
 Started by archive 01 Sep 2007 05:26 AM. Topic has 3 replies and 2415 views
• #### Sat, Sep 1 2007 5:26 AM

• archive
• Joined on Fri, Jul 4 2008
• Posts 88
• Points 4,930
static and dynamic (power + IR) analysis
 Hi,I wanted to know what is difference between followings1. Power analysis and IR drop analysis2. Static power analysis and Dynamic power analysis3. Static IR drop and Dynamic IR drop analysiswhat 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 linksThanks & Regards,KulPrashant Originally posted in cdnusers.org by kulprashant05
• Post Points: 0
• #### Fri, Sep 14 2007 5:05 AM

• archive
• Joined on Fri, Jul 4 2008
• Posts 88
• Points 4,930
RE: static and dynamic (power + IR) analysis
 Maybe this whitepaper could be a kickoff for your IRdrop questions:http://www.cadence.com/whitepapers/4101_PowerGridVerif_WP.pdfCristianoOriginally posted in cdnusers.org by clsantos
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• #### Thu, Sep 20 2007 11:45 AM

• archive
• Joined on Fri, Jul 4 2008
• Posts 88
• Points 4,930
RE: static and dynamic (power + IR) analysis
 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. -regdsprakashOriginally posted in cdnusers.org by pjayasekharan
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• #### Thu, Sep 20 2007 9:30 PM

• archive
• Joined on Fri, Jul 4 2008
• Posts 88
• Points 4,930
RE: static and dynamic (power + IR) analysis
 Thanks Prakash & Cristiano.Regards,PrashantOriginally posted in cdnusers.org by kulprashant05
• Post Points: 0