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Preface
SPRUE30B–September2006
ReadThisFirst
AboutThisManual
Thismanualdescribesthemultimediacard(MMC)/securedigital(SD)cardcontrollerinthe
TMS320DM644xDigitalMediaSystem-on-Chip(DMSoC).TheMMC/SDcardisusedinanumberof
applicationstoprovideremovabledatastorage.TheMMC/SDcontrollerprovidesaninterfacetoexternal
MMCandSDcards.TheMMC/SDprotocolperformsthecommunicationbetweentheMMC/SDcontroller
andMMC/SDcard(s).
NotationalConventions
Thisdocumentusesthefollowingconventions.
•Hexadecimalnumbersareshownwiththesuffixh.Forexample,thefollowingnumberis40
hexadecimal(decimal64):40h.
•Registersinthisdocumentareshowninfiguresanddescribedintables.
–Eachregisterfigureshowsarectangledividedintofieldsthatrepresentthefieldsoftheregister.
Eachfieldislabeledwithitsbitname,itsbeginningandendingbitnumbersabove,andits
read/writepropertiesbelow.Alegendexplainsthenotationusedfortheproperties.
–Reservedbitsinaregisterfiguredesignateabitthatisusedforfuturedeviceexpansion.
RelatedDocumentationFromTexasInstruments
ThefollowingdocumentsdescribetheTMS320DM644xDigitalMediaSystem-on-Chip(DMSoC).Copies
ofthesedocumentsareavailableontheInternetatwww.ti.com.Tip:Entertheliteraturenumberinthe
searchboxprovidedatwww.ti.com.
ThecurrentdocumentationthatdescribestheDM644xDMSoC,relatedperipherals,andothertechnical
collateral,isavailableintheC6000DSPproductfolderat:www.ti.com/c6000.
SPRUE14—TMS320DM644xDMSoCARMSubsystemReferenceGuide.DescribestheARM
subsytemintheTMS320DM644xDigitalMediaSystem-on-Chip(DMSoC).TheARMsubsystemis
designedtogivetheARM926EJ-S(ARM9)mastercontrolofthedevice.Ingeneral,theARMis
responsibleforconfigurationandcontrolofthedevice;includingtheDSPsubsystem,thevideo
processingsubsystem,andamajorityoftheperipheralsandexternalmemories.
SPRUE15—TMS320DM644xDMSoCDSPSubsystemReferenceGuide.Describesthedigitalsignal
processor(DSP)subsystemintheTMS320DM644xDigitalMediaSystem-on-Chip(DMSoC).
SPRUE19—TMS320DM644xDMSoCPeripheralsOverviewReferenceGuide.Providesanoverview
andbrieflydescribestheperipheralsavailableontheTMS320DM644xDigitalMedia
System-on-Chip(DMSoC).
SPRAA84—TMS320C64xtoTMS320C64x+CPUMigrationGuide.Describesmigratingfromthe
TexasInstrumentsTMS320C64xdigitalsignalprocessor(DSP)totheTMS320C64x+DSP.The
objectiveofthisdocumentistoindicatedifferencesbetweenthetwocores.Functionalityinthe
devicesthatisidenticalisnotincluded.
SPRU732—TMS320C64x/C64x+DSPCPUandInstructionSetReferenceGuide.DescribestheCPU
architecture,pipeline,instructionset,andinterruptsfortheTMS320C64xandTMS320C64x+digital
signalprocessors(DSPs)oftheTMS320C6000DSPfamily.TheC64x/C64x+DSPgeneration
comprisesfixed-pointdevicesintheC6000DSPplatform.TheC64x+DSPisanenhancementof
theC64xDSPwithaddedfunctionalityandanexpandedinstructionset.
SPRUE30B–September2006Preface7
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