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2Introduction
2.1description
2.2pinassignments
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TMS320VC5402A
fixed-pointdigitalsignalprocessor
SPRS015E–SEPTEMBER2001–REVISEDJANUARY2005
thisdatamanualalsoprovidesadetaileddescription,functionaloverview,electricalspecifications,
parametermeasurementinformation,andmechanicaldataabouttheavailablepackaging.thissection
describesthemainfeaturesofthetms320vc5402a,liststhepinassignments,anddescribesthefunction
ofeachpin.
便条
Thisdatamanualisdesignedtobeusedinconjunctionwiththe
TMS320C54x™DSP
FunctionalOverview
(literaturenumberspru307).
thetms320vc5402afixed-要点,digitalsignalprocessor(dsp)(hereafterreferredtoasthedevice
unlessotherwisespecified)isbasedonanadvancedmodifiedharvardarchitecturethathasoneprogram
memorybusandthreedatamemorybuses.thisprocessorprovidesanarithmeticlogicunit(alu)witha
highdegreeofparallelism,应用-specifichardwarelogic,在-chipmemory,andadditionalon-碎片
peripherals.thebasisoftheoperationalflexibilityandspeedofthisdspisahighlyspecializedinstruction
设置.
separateprogramanddataspacesallowsimultaneousaccesstoprograminstructionsanddata,供应
ahighdegreeofparallelism.tworeadoperationsandonewriteoperationcanbeperformedinasingle
循环.instructionswithparallelstoreandapplication-specificinstructionscanfullyutilizethisarchitecture.
inaddition,datacanbetransferredbetweendataandprogramspaces.suchparallelismsupportsa
powerfulsetofarithmetic,逻辑,andbit-manipulationoperationsthatcanallbeperformedinasingle
machinecycle.thedevicealsoincludesthecontrolmechanismstomanageinterrupts,重复的
行动,andfunctioncalls.
figure2-1illustratestheballlocationsforthe144-pinballgridarray(bga)packageandisusedin
conjunctionwithtable2-1tolocatesignalnamesandballgridnumbers.figure2-2providesthepin
assignmentsforthe144-pinlow-profileflatpack(lqfp)包装.
figure2-1.144-ballggumicrostarbga™(bottomview)
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介绍