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1.2.1DeviceCompatibility
TMS320C6727,TMS320C6726,TMS320C6722
Floating-PointDigitalSignalProcessors
SPRS268E–MAY2005–REVISEDJANUARY2007
Real-TimeInterruptTimer(RTI).Thereal-timeinterrupttimermoduleincludes:
•Two32-bitcounter/prescalerpairs
•Twoinputcaptures(tiedtoMcASPdirectmemoryaccess[DMA]eventsforsampleratemeasurement)
•Fourcompareswithautomaticupdatecapability
•DigitalWatchdog(optional)forenhancedsystemrobustness
ClockGeneration(PLLandOSC).TheC672xDSPincludesanon-chiposcillatorthatsupportscrystals
intherangeof12MHzto25MHz.Alternatively,theclockcanbeprovidedexternallythroughtheCLKIN
pin.
TheDSPincludesaflexible,software-programmablephase-lockedloop(PLL)clockgenerator.Three
differentclockdomains(SYSCLK1,SYSCLK2,andSYSCLK3)aregeneratedbydividingdownthePLL
output.SYSCLK1istheclockusedbytheCPU,memorycontroller,andmemories.SYSCLK2isusedby
theperipheralsubsystemanddMAX.SYSCLK3isusedexclusivelyfortheEMIF.
TheTMS320C672xfloating-pointdigitalsignalprocessorsarebasedonthenewC67x+CPU.Thiscoreis
code-compatiblewiththeC67xCPUcoreusedontheTMS320C671xDSPs,butwithsignificant
enhancementsincludingadditionalfloating-pointinstructions.SeeSection2.2
4TMS320C6727,TMS320C6726,TMS320C6722DSPsSubmitDocumentationFeedback