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1、IEEEStandardforDesignandVerificationofLowPowerIntegratedCircuitsIEEEComputerSocietySponsoredbytheDesignAutomationStandardsCommitteeandtheTMIEEEStandardsAssociationCorporateAdvisoryGroupIEEE18013ParkAvenueIEEEStd1801™-2009NewYork,NY10016-5997,USA27March2009IEEEStd1
2、801™-2009IEEEStandardforDesignandVerificationofLowPowerIntegratedCircuitsSponsorDesignAutomationStandardsCommitteeoftheIEEEComputerSocietyandtheIEEEStandardsAssociationCorporateAdvisoryGroupApproved19March2009IEEE-SAStandardsBoardGratefulacknowledgmentismadetoAcce
3、llera,Inc.forthepermissiontousethefollowingsourcematerial:UnifiedPowerFormat(UPF)Standard,Version1.0Abstract:Thepowersuppliedtoelementsinanelectronicdesignaffectsthewaycircuitsoperate.Althoughthisisobviouswhenstated,today’ssetofhigh-leveldesignlanguageshavenothada
4、consistentwaytoconciselyrepresenttheregionsofadesignwithdifferentpowerprovisions,northestatesofthoseregionsordomains.ThisstandardprovidesanHDL-independentwayofannotatingadesignwithpowerintent.Inaddition,thelevel-shiftingandisolationbetweenpowerdomainsmaybedescribe
5、dforaspecificimplementation,fromhigh-levelconstraintstoparticularconfigurations.Whenthelogicinapowerdomainreceivesdifferentpowersupplylevels,thelogicstateofportionsofthedesignmaybepreservedwithvariousstate-retentionstrategies.Thisstandardprovidesmechanismsforthere
6、finedandspecificdescriptionofintent,effect,andimplementationofvariousretentionstrategies.Incorporatingcomponentsintodesignsisgreatlyassistedbytheencapsulationandspecificationofthecharacteristicsofthepowerenvironmentofthedesignandthepowerrequirementsandcapabilities
7、ofthecomponents;thisinformationencapsulationmechanismisalsodescribedinthisstandard.Theanalysisofthevariouspowermodesofadesignisenabledwithacombinationofthedescriptionofthepowermodesandthecollection,generation,andpropagationofswitchinginformation.Keywords:corruptio
8、nsemantics,interfacespecification,IPreuse,isolation,level-shifting,power-awaredesign,powerintent,powerdomains,powermodes,powerstates,progressivedesignre