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PRODUCT PREVIEW
4.3ConfigurationSwitchFabric
TMS320C6454
Fixed-PointDigitalSignalProcessor
SPRS311A–APRIL2006–REVISEDDECEMBER2006
Table4-1.SCRConnectionMatrix
DDR2MEMORY
McBSPsCONFIGURATIONSCRPCIEMIFAMEGAMODULE
CONTROLLER
TC0NNNYYY
TC1YYYYYY
TC2NNYYYY
TC3NNYYYY
EMACNNNYYY
HPINYNYYY
PCINYNYYY
Figure4-2showstheconnectionbetweentheC64x+Megamoduleandtheconfigurationswitchedcentral
resource(SCR).TheconfigurationSCRismainlyusedbytheC64x+Megamoduletoaccessperipheral
registers.ThedataSCRalsohasaconnectiontotheconfigurationSCRwhichallowsmasterstoaccess
mostperipheralregisters.TheonlyregistersnotaccessiblebythedataSCRthroughtheconfiguration
SCRarethedeviceconfigurationregistersandthePLL1andPLL2controllerregisters;thesecanonlybe
accessedbytheC64x+Megamodule.
TheconfigurationSCRuses32-bitconfigurationbusesrunningatSYSCLK2frequency.SYSCLK2is
suppliedbythePLL1controllerandisfixedatafrequencyequaltotheCPUfrequencydividedby3.
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