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SM320C6455-EP
FIXED-POINTDIGITALSIGNALPROCESSOR
SPRS462B–SEPTEMBER2007–REVISEDJANUARY2008
1Features..............................................................................................................................7
1.1ZTZ/GTZBGAPackage(BottomView)...................................................................................8
1.2Description....................................................................................................................8
1.3FunctionalBlockDiagram.................................................................................................10
2DeviceOverview.................................................................................................................11
2.1DeviceCharacteristics.....................................................................................................11
2.2CPU(DSPCore)Description.............................................................................................12
2.3MemoryMapSummary....................................................................................................15
2.4BootSequence.............................................................................................................17
2.4.1BootModesSupported.........................................................................................17
2.4.22nd-LevelBootloaders..........................................................................................19
2.5PinAssignments............................................................................................................20
2.5.1PinMap...........................................................................................................20
2.6SignalGroupsDescription................................................................................................24
2.7TerminalFunctions.........................................................................................................30
2.8Development................................................................................................................55
2.8.1DevelopmentSupport...........................................................................................55
2.8.2DeviceSupport..................................................................................................55
2.8.2.1DeviceandDevelopment-SupportToolNomenclature........................................55
2.8.2.2DocumentationSupport.............................................................................56
3DeviceConfiguration..........................................................................................................59
3.1DeviceConfigurationatDeviceReset...................................................................................59
3.2PeripheralConfigurationatDeviceReset...............................................................................61
3.3PeripheralSelectionAfterDeviceReset................................................................................63
3.4DeviceStateControlRegisters...........................................................................................65
3.4.1PeripheralLockRegisterDescription.........................................................................66
3.4.2PeripheralConfigurationRegister0Description............................................................67
3.4.3PeripheralConfigurationRegister1Description............................................................69
3.4.4PeripheralStatusRegistersDescription......................................................................70
3.4.5EMACConfigurationRegister(EMACCFG)Description...................................................73
3.4.6EmulatorBufferPowerdownRegister(EMUBUFPD)Description........................................74
3.5DeviceStatusRegisterDescription......................................................................................75
3.6JTAGID(JTAGID)RegisterDescription................................................................................77
3.7Pullup/PulldownResistors.................................................................................................78
3.8ConfigurationExamples...................................................................................................78
4SystemInterconnect...........................................................................................................81
4.1InternalBuses,Bridges,andSwitchFabrics...........................................................................81
4.2DataSwitchFabricConnections.........................................................................................82
4.3ConfigurationSwitchFabric...............................................................................................84
4.4BusPriorities................................................................................................................86
5C64x+Megamodule............................................................................................................87
5.1MemoryArchitecture.......................................................................................................87
5.2MemoryProtection.........................................................................................................90
5.3BandwidthManagement...................................................................................................90
5.4Power-DownControl.......................................................................................................91
5.5MegamoduleResets.......................................................................................................91
5.6MegamoduleRevision.....................................................................................................92
5.7C64x+MegamoduleRegisterDescription(s)...........................................................................93
6DeviceOperatingConditions.............................................................................................101
6.1AbsoluteMaximumRatingsOverOperatingCaseTemperatureRange(UnlessOtherwiseNoted)..........101
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