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1、TMS320x281xDSPSystemControlandInterruptsReferenceGuideLiteratureNumber:SPRU078GApril2002−RevisedAugust2012PrefaceReadThisFirstAboutThisManualThisguidedescribeshowvarious281xdigitalsignalprocessor(DSP)systemcontrolsandinterruptsworkwithperipherals.Itincludesinformationonthe:-Flashandone-timepro
2、grammable(OTP)memories-Codesecuritymodule(CSM),whichisasecurityfeatureincorporatedin28xdevices-Clockingmechanismsincludingtheoscillator,PLL,thewatchdogfunction,andthelow-powermodes-GPIOMUXregistersusedtoselecttheoperationofsharedpins-Peripheralframesandthedeviceemulationregisters-Peripheralint
3、erruptexpansion(PIE)blockthatmultiplexesnumerousinterruptsourcesintoasmallersetofinterruptinputsRelatedDocumentationFromTexasInstrumentsThefollowingbooksdescribetheTMS320x281xandrelatedsupporttoolsthatareavailableontheTIwebsite.TMS320F2810,TMS320F2811,TMS320F2812,TMS320C2810,TMS320C2811,andTMS
4、320C2812DigitalSignalProcessors(literaturenumberSPRS174)datasheetcontainstheelectricalandtimingspecificationsforthesedevices,aswellassignaldescriptionsandpinoutsforalloftheavailablepackages.TMS320R2811andTMS320R2812DigitalSignalProcessors(literaturenumberSPRS257)datasheetcontainstheelectricala
5、ndtimingspecificationsforthesedevices,aswellassignaldescriptionsandpinoutsforalloftheavailablepackages.TMS320C28xDSPCPUandInstructionSetReferenceGuide(literaturenumberSPRU430)describesthecentralprocessingunit(CPU)andtheassemblylanguageinstructionsoftheTMS320C28x™fixed-pointdigitalsignalprocess
6、ors(DSPs).ItalsodescribesemulationfeaturesavailableontheseDSPs.ReadThisFirstiiiRelatedDocumentationFromTexasInstrumentsTMS320x281xAnalog-to-DigitalConverter(ADC)ReferenceGuide(liter-aturenumberSPRU060)describestheADCmodule.Themoduleisa12−bitpipelinedADC.Theanalogcircuitsofthisconverter,referre
7、dtoasthecoreinthisdocument,includethefront-endanalogmultiplexers(MUXs),sample−and−hold(S/H)circuits,theconversioncore,voltageregulators,andotheranalogsupportingcircuits.Digitalcircuits,referredtoasthewrapperinthisdocument,includeprogram
