ApplicationReportSPRAA58A–February2005–RevisedOctober2006TMS320x281xtoTMS320x280xMigrationOverviewLoriHeustess.....................................................................................................................AECDCSABSTRACTThisapplicationreportdescribesdifferencesbetweentheTexasInstrumentsTMS320x281xandtheTMS320x280x/2801x/2804xDSPstoassistinapplicationmigration.Whilethemainfocusofthisdocumentismigrationfrom281xto280x/2801x/2804x,usersconsideringmigratinginthereversedirectionwillalsofindthisdocumentuseful.Functionsthatareidenticalinbothdevicesarenotnecessarilyincluded.Alleffortshavebeenmadetoprovideacomprehensivelistofthedifferencesbetweenthetwodevicegroupsinthe28xgeneration.Contents1Introduction..........................................................................................22PackageandPinout................................................................................23OperatingFrequencyandPowerSupply........................................................34PowerSequencing.................................................................................35MemoryMap........................................................................................36ClocksandSystemControl.......................................................................57Peripherals..........................................................................................78Interrupts...........................................................................................139ErrataFixes........................................................................................14ListofTables1SARAMAddresses.................................................................................32SARAMMemoryPerDevice......................................................................43SectorConfigurationPerDevice.................................................................44280x/2801x/2804xBootLoaderSelection.......................................................55New...
