www.德州仪器.com
1tms320dm642video/imagingfixed-pointdigitalsignalprocessor
1.1features
TMS320DM642
video/imagingfixed-pointdigitalsignalprocessor
SPRS200J–JULY2002–REVISEDAUGUST2005
MemorySpace
•
高-performancedigitalmediaprocessor
–2-,1.67-,1.39-nsinstructioncycletime
•
enhanceddirect-记忆-进入(edma)
控制(64independentchannels)
–500-,600-,720-mhzclockrate
–eight32-bitinstructions/循环
•
10/100mb/sethernetmac(emac)
–4000,4800,5760mips
–ieee802.3compliant
–fullysoftware-compatiblewithc64x™
–mediaindependentinterface(mii)
–8independenttransmit(tx)channelsand
•
velociti.2™extensionstovelociti™
1receive(rx)频道
advancedvery-长-操作指南-文字(vliw)
TMS320C64x™DSPCore
•
managementdatainput/输出(mdio)
–EightHighlyIndependentFunctionalUnits
•
ThreeConfigurableVideoPorts
withvelociti.2™extensions:
–providingagluelessi/ftocommonvideo
•
sixalus(32-/40-位),eachsupports
DecoderandEncoderDevices
single32-位,dual16-位,orquad8-位
–supportsmultipleresolutions/videostds
ArithmeticperClockCycle
•
vcxointerpolatedcontrolport(vic)
•
twomultiplierssupportfour16x16-位
–supportsaudio/videosynchronization
multiplies(32-bitresults)perclock
cycleoreight8x8-bitmultiplies(16-位
•
host-portinterface(hpi)[32-/16-bit]
结果)perclockcycle
•
32-位/66-mhz,3.3-vperipheralcomponent
–load-storearchitecturewithnon-排整齐
interconnect(pci)主控/slaveinterface
支持
conformstopcispecification2.2
–6432-bitgeneral-purposeregisters
•
multichannelaudioserialport(mcasp)
–InstructionPackingReducesCodeSize
–EightSerialDataPins
–AllInstructionsConditional
–WideVarietyofI
2
SandSimilarBitStream
•
InstructionSetFeatures
Format
–byte-addressable(8-/16-/32-/64-bitdata)
–integrateddigitalaudioi/ftransmitter
–8-bitoverflowprotectionsupportss/pdif,iec60958-1,aes-3,
cp-430formats
–bit-fieldextract,设置,clear
•
inter-integratedcircuit(i
2
cbus™)
–normalization,饱和,位-counting
–velociti.2™increasedorthogonality
•
TwoMultichannelBufferedSerialPorts
•
l1/l2memoryarchitecture
•
three32-bitgeneral-purposetimers
–128k-位(16k-字节)l1pprogramcache
•
sixteengeneral-purposei/o(gpio)管脚
(directmapped)
•
FlexiblePLLClockGenerator
–128k-位(16k-字节)l1ddatacache(2-方法
•
ieee-1149.1(jtag)boundary-
设置-associative)
scan-兼容
–2m-位(256k-字节)l2unifiedmapped
•
548-pinballgridarray(bga)包装
内存/cache(flexibleram/cache
allocation)
(gdkandzdksuffixes),0.8-mmballpitch
•
endianess:littleendian,bigendian
•
548-pinballgridarray(bga)包装
(gnzandznzsuffixes),1.0-mmballpitch
•
64-bitexternalmemoryinterface(emif)
•
0.13-µm/6-levelcumetalprocess(cmos)
–GluelessInterfacetoAsynchronous
memories(sramandeprom)和
•
3.3-vi/o,1.2-vinternal(-500)
synchronousmemories(sdram,sbsram,
•
3.3-vi/o,1.4-vinternal(一个-500,一个-600,-600,
zbtsram,andfifo)
-720)
•
1024m-bytetotaladdressableexternal
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdocument.
windowsisaregisteredtrademarkofmicrosoftcorporation.
I
2
cbusisatrademarkofphilipselectronicsn.v..
productiondatainformationiscurrentasofpublicationdate.
copyright©2002–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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