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产品 预告(展)
1digitalmediasystem-在-碎片(dmsoc)
1.1features
TMS320DM6446
digitalmediasystemon-碎片
SPRS283–DECEMBER2005
•
高-performancedigitalmediasoc
•
arm926ej-s(mpu)核心
–594-mhzc64x+™clockrate–supportfor32-bitand16-位(thumb®
模式)instructionsets
–297-mhzarm926ej-s™clockrate
–DSPInstructionExtensionsandSingle
–eight32-bitc64x+instructions/循环
CycleMAC
–4752C64x+MIPS
–ARM®Jazelle®Technology
–fullysoftware-compatiblewithc64x/
–embeddedice-rt™logicforreal-时间
ARM9™
Debug
•
advancedvery-长-操作指南-文字(vliw)
•
ARM9MemoryArchitecture
TMS320C64x+™DSPCore
–16k-byteinstructioncache
–EightHighlyIndependentFunctionalUnits
–8k-bytedatacache
•
sixalus(32-/40-位),eachsupports
–16k-byteram
single32-位,dual16-位,orquad8-位
ArithmeticperClockCycle
–16k-byterom
•
twomultiplierssupportfour16x16-位
•
embeddedtracebuffer™(etb11™)with4kb
multiplies(32-bitresults)perclock
MemoryforARM9Debug
cycleoreight8x8-bitmultiplies(16-位
•
endianness:littleendianforarmanddsp
结果)perclockcycle
•
VideoProcessingSubsystem
–load-storearchitecturewithnon-排整齐
–frontendprovides:
支持
•
CCDandCMOSImagerInterface
–6432-bitgeneral-purposeregisters
•
bt.601/bt.656digitalycbcr4:2:2
–InstructionPackingReducesCodeSize
(8-/16-位)接口
–AllInstructionsConditional
•
previewengineforreal-timeimage
–AdditionalC64x+™Enhancements
处理
•
ProtectedModeOperation
•
GluelessInterfacetoCommonVideo
•
ExceptionsSupportforErrorDetection
Decoders
andProgramRedirection
•
HistogramModule
•
HardwareSupportforModuloLoop
•
自动-暴露,自动-whitebalanceand
运作
自动-focusmodule
•
C64x+InstructionSetFeatures
•
ResizeEngine
–byte-addressable(8-/16-/32-/64-bitdata)
•
resizeimagesfrom1/4xto4x
–8-bitoverflowprotection
•
separatehorizontal/verticalcontrol
–bit-fieldextract,设置,clear
–backendprovides:
–normalization,饱和,位-counting
•
hardwareon-screendisplay(osd)
–compact16-bitinstructions
•
four54-mhzdacsforacombinationof
–AdditionalInstructionstoSupportComplex
•
compositentsc/palvideo
Multiplies
•
luma/chromaseparatevideo
•
c64x+l1/l2memoryarchitecture
(s-video)
–32k-bytel1pprogramram/cache(直接
•
组件(ypbprorrgb)video
编排)
(progressive)
–80k-bytel1ddataram/cache(2-方法
•
DigitalOutput
设置-associative)
•
8-/16-bityuvorupto24-bitrgb
–64k-bytel2unifiedmappedram/cache
•
HDResolution
(flexibleram/cacheallocation)
•
Upto2VideoWindows
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2
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2
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