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SPRUEK8—TMS320DM647/DM648DSPInter-IntegratedCircuit(I2C)ModuleUser'sGuide
describestheinter-integratedcircuit(I2C)peripheralintheTMS320DM647/DM648DigitalSignal
Processor(DSP).TheI2CperipheralprovidesaninterfacebetweentheDSPandotherdevices
compliantwiththeI2C-busspecificationandconnectedbywayofanI2C-bus.Externalcomponents
attachedtothis2-wireserialbuscantransmitandreceiveupto8-bitwidedatatoandfromthe
DSPthroughtheI2Cperipheral.ThisdocumentassumesthereaderisfamiliarwiththeI2C-bus
specification.
SPRUEL0—TMS320DM647/DM648DSP64-BitTimerUser'sGuidedescribestheoperationofthe
64-bittimerintheTMS320DM647/DM648DigitalSignalProcessor(DSP).Thetimercanbe
configuredasageneral-purpose64-bittimer,dualgeneral-purpose32-bittimers,orawatchdog
timer.
SPRUEL1—TMS320DM647/DM648DSPMultichannelAudioSerialPort(McASP)User'sGuide
describesthemultichannelaudioserialport(McASP)intheTMS320DM647/DM648DigitalSignal
Processor(DSP).TheMcASPfunctionsasageneral-purposeaudioserialportoptimizedforthe
needsofmultichannelaudioapplications.TheMcASPisusefulfortime-divisionmultiplexed(TDM)
stream,Inter-IntegratedSound(I2S)protocols,andintercomponentdigitalaudiointerface
transmission(DIT).
SPRUEL2—TMS320DM647/DM648DSPEnhancedDMA(EDMA)ControllerUser'sGuidedescribes
theoperationoftheenhanceddirectmemoryaccess(EDMA3)controllerinthe
TMS320DM647/DM648DigitalSignalProcessor(DSP).TheEDMA3controller’sprimarypurposeis
toserviceuser-programmeddatatransfersbetweentwomemory-mappedslaveendpointsonthe
DSP.
SPRUEL4—TMS320DM647/DM648DSPPeripheralComponentInterconnect(PCI)User'sGuide
describestheperipheralcomponentinterconnect(PCI)portintheTMS320DM647/DM648Digital
SignalProcessor(DSP).ThePCIportsupportsconnectionoftheC642xDSPtoaPCIhostviathe
integratedPCImaster/slavebusinterface.ThePCIportinterfacestotheDSPviatheenhanced
DMA(EDMA)controller.ThisarchitectureallowsforbothPCImasterandslavetransactions,while
keepingtheEDMAchannelresourcesavailableforotherapplications.
SPRUEL5—TMS320DM647/DM648DSPHostPortInterface(UHPI)User'sGuidedescribesthehost
portinterface(HPI)intheTMS320DM647/DM648DigitalSignalProcessor(DSP).TheHPIisa
parallelportthroughwhichahostprocessorcandirectlyaccesstheCPUmemoryspace.Thehost
devicefunctionsasamastertotheinterface,whichincreaseseaseofaccess.ThehostandCPU
canexchangeinformationviainternalorexternalmemory.Thehostalsohasdirectaccessto
memory-mappedperipherals.ConnectivitytotheCPUmemoryspaceisprovidedthroughthe
enhanceddirectmemoryaccess(EDMA)controller.
SPRUEL8—TMS320DM647/DM648DSPUniversalAsynchronousReceiver/Transmitter(UART)
User'sGuidedescribestheuniversalasynchronousreceiver/transmitter(UART)peripheralinthe
TMS320DM647/DM648DigitalSignalProcessor(DSP).TheUARTperipheralperforms
serial-to-parallelconversionondatareceivedfromaperipheraldevice,andparallel-to-serial
conversionondatareceivedfromtheCPU.
SPRUEL9—TMS320DM647/DM648DSPVLYNQPortUser'sGuidedescribestheVLYNQportinthe
TMS320DM647/DM648DigitalSignalProcessor(DSP).TheVLYNQportisahigh-speed
point-to-pointserialinterfaceforconnectingtohostprocessorsandotherVLYNQcompatible
devices.Itisafull-duplexserialbuswheretransmitandreceiveoperationsoccurseparatelyand
simultaneouslywithoutinterference.
SPRUEM1—TMS320DM647/DM648DSPVideoPort/VCXOInterpolatedControl(VIC)PortUser's
GuidediscussesthevideoportandVCXOinterpolatedcontrol(VIC)portinthe
TMS320DM647/DM648DigitalSignalProcessor(DSP).Thevideoportcanoperateasavideo
captureport,videodisplayport,ortransportchannelinterface(TCI)captureport.TheVICport
providessingle-bitinterpolatedVCXOcontrolwithresolutionfrom9bitstoupto16bits.Whenthe
videoportisusedinTCImode,theVICportisusedtocontrolthesystemclock,VCXO,forMPEG
transportchannel.
SPRUEK5A–October2007ReadThisFirst7
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