TMS320x2833x,2823xDSCExternalInterface(XINTF)ReferenceGuideLiteratureNumber:SPRU949DSeptember2007–RevisedJanuary20102SPRU949D–September2007–RevisedJanuary2010SubmitDocumentationFeedbackCopyright©2007–2010,TexasInstrumentsIncorporatedPreface.......................................................................................................................................51FunctionalDescription.........................................................................................................71.1DifferencesfromtheTMS320x281xXINTF..........................................................................71.2DifferencesfromtheTMS320x2834xXINTF........................................................................81.3AccessingXINTFZones................................................................................................81.4Write-Followed-by-ReadPipelineProtection........................................................................92XINTFConfigurationOverview............................................................................................102.1ProceduretoChangetheXINTFConfigurationandTimingRegisters.........................................102.2XINTFClocking........................................................................................................112.3WriteBuffer.............................................................................................................122.4XINTFAccessLead/Active/TrailWait-StateTimingPerZone...................................................122.5XREADYSamplingForEachZone.................................................................................132.6BankSwitching.........................................................................................................132.7ZoneDataBusWidth..................................................................................................143ExternalDMASupport(XHOLD,XHOLDA)......................................................................
