cortex m4 内核文档 r0p0

Copyright©2009,2010ARMLimited.Allrightsreserved.ARMDDI0439B(ID030210)Cortex-M4Revisionr0p0TechnicalReferenceManualARMDDI0439BCopyright©2009,2010ARMLimited.Allrightsreserved.iiID030210Non-Confidential,UnrestrictedAccessCortex-M4TechnicalReferenceManualCopyright©2009,2010ARMLimited.Allrightsreserved.ReleaseInformationThefollowingchangeshavebeenmadetothisbook.ProprietaryNoticeWordsandlogosmarkedwith®or™areregisteredtrademarksortrademarksofARM®LimitedintheEUandothercountries,exceptasotherwisestatedinthisproprietarynotice.Otherbrandsandnamesmentionedhereinmaybethetrademarksoftheirrespectiveowners.Neitherthewholenoranypartoftheinformationcontainedin,ortheproductdescribedin,thisdocumentmaybeadaptedorreproducedinanymaterialformexceptwiththepriorwrittenpermissionofthecopyrightholder.Theproductdescribedinthisdocumentissubjecttocontinuousdevelopmentsandimprovements.AllparticularsoftheproductanditsusecontainedinthisdocumentaregivenbyARMLimitedingoodfaith.However,allwarrantiesimpliedorexpressed,includingbutnotlimitedtoimpliedwarrantiesofmerchantability,orfitnessforpurpose,areexcluded.Thisdocumentisintendedonlytoassistthereaderintheuseoftheproduct.ARMLimitedshallnotbeliableforanylossordamagearisingfromtheuseofanyinformationinthisdocument,oranyerrororomissioninsuchinformation,oranyincorrectuseoftheproduct.WherethetermARMisuseditmeans“ARMoranyofitssubsidiariesasappropriate”.SomematerialinthisdocumentisbasedonIEEE754-2008IEEEStandardforBinaryFloating-PointArithmetic.TheIEEEdisclaimsanyresponsibilityorliabilityresultingfromtheplacementanduseinthedescribedmanner.ConfidentialityStatusThisdocumentisNon-Confidential.Therighttouse,copyanddisclosethisdocumentmaybesubjecttolicenserestrictionsinaccordancewiththetermsoftheagreemententeredintobyARMandthepartythatARMdeliveredthisdocumentto.UnrestrictedAccessisanARMinternalclassification.ProductStatusTheinformationinthisdocumentisFinal(informationonadevelopedproduct).WebAddress©2009,2010ARMLimited.Allrightsreserved.iiiID030210Non-Confidential,UnrestrictedAccessContentsCortex-M4TechnicalReferenceManualPrefaceAboutthisbook...........................................................................................................ixFeedback....................................................................................................................xiChapter1Introduction1.1Abouttheprocessor.................................................................................................1-21.2Features...................................................................................................................1-31.3Interfaces.................................................................................................................1-41.4Configurableoptions................................................................................................1-51.5Productdocumentation............................................................................................1-6Chapter2FunctionalDescription2.1Aboutthefunctions..................................................................................................2-22.2Interfaces.................................................................................................................2-5Chapter3ProgrammersModel3.1Abouttheprogrammersmodel................................................................................3-23.2Modesofoperationandexecution...........................................................................3-33.3Instructionsetsummary...........................................................................................3-43.4Systemaddressmap.............................................................................................3-143.5Writebuffer............................................................................................................3-173.6Exclusivemonitor...................................................................................................3-183.7Bit-banding.............................................................................................................3-193.8Processorcoreregistersummary..........................................................................3-213.9Exceptions.............................................................................................................3-23Chapter4SystemControl4.1Aboutsystemcontrol...............................................................................................4-2ContentsARMDDI0439BCopyright©2009,2010ARMLimited.Allrightsreserved.ivID030210Non-Confidential,UnrestrictedAccess4.2Registersummary....................................................................................................4-34.3Registerdescriptions.............................................................................................