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1.3DSPSubsysteminTMS320DM643xDMP
1.3.1ComponentsoftheDSPSubsystem
DSPSubsysteminTMS320DM643xDMP
IntheDM643xDMP,theDSPsubsystemisresponsibleforperformingdigitalsignalprocessingfordigital
mediaapplications.Inaddition,theDSPsubsystemactsastheoverallsystemcontroller,responsiblefor
handlingmanysystemfunctionssuchassystem-levelinitialization,configuration,userinterface,user
commandexecution,connectivityfunctions,andoverallsystemcontrol.
TheDSPsubsystemintheDM643xDMPconsistsofthefollowingcomponents:
•C64x+Megamodule
•DSPInternalMemories
–Level-1programmemory(L1P)
–Level-1datamemory(L1D)
–Level-2unifiedmemory(L2)
TheDSPalsomanages/controlsallperipheralsonthedevice.Refertodevice-specificdatamanualforthe
fulllistofperipherals.
Figure1-1showsthefunctionalblockdiagramoftheDM643xDMPandhowtheDSPsubsystemis
connectedtotherestofthedevice.TheDM643xDMParchitectureusestheSystemInfrastructure
(SwitchedCentralResource)totransferdatawithinthesystem.
Chapter2discussestheC64x+Megamoduleinmoredetails,includingitsdetailedblockdiagram.
SPRU978E–March2008Introduction13
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