ACT-5261PC-150F24C中文资料

ACT-5261PC-150F24C中文资料FeatureseroflexCircuitTechnology–RISCTurboEnginesForTheFuture©SCD5261REV112/22/98BlockDiagramsFullmilitarizedQEDRM5261microprocessorsDualIssuesuperscalarmicroprocessor-canissueoneintegerandonefloating-pointinstructionpercycleq133,150,200,250MHzoperatingfrequencies–ConsultFactoryforlatestspeedsq345Dhrystone2.1MIPSqSPECInt957.3,SPECfp958.3sPinoutcompatiblewithpopularRM5260sHighperformancesysteminterfacecompatiblewithRM5260,RM5270,RM5271,RM7000,R4600,R4700andR5000q64-bitmultiplexedsystemaddress/databusforoptimumprice/performanceqHighperformancewriteprotocolsmaximizeuncachedwritebandwidthqSupports1/2clockdivisors(2,2.5,3,3.5,4,4.5,5,6,7,8,9)qIEEE1149.1JTAGboundaryscans•Integratedon-chipcachesq32KBinstruction-2waysetassociativeq32KBdata-2waysetassociativeqVirtuallyindexed,physicallytaggedqWrite-backandwrite-throughonperpagebasisqPipelinerestartonfirstdoublefordatacachemissess•IntegratedmemorymanagementunitqFullyassociativejointTLB(sharedbyIandDtranslations)q48dualentriesmap96pagesqVariablepagesize(4KBto16MBin4xincrements)sHigh-performancefloatingpointunit:upto500MFLOPSqSinglecyclerepeatrateforcommonsingleprecisionoperationsandsomedoubleprecisionoperationsqTwocyclerepeatratefordoubleprecisionmultiplyanddoubleprecisioncombinedmultiply-addoperationsqSinglecyclerepeatrateforsingleprecisioncombinedmultiply-addoperations•MIPSIVinstructionsetqFloatingpointmultiply-addinstructionincreasesperformanceinsignalprocessingandgraphicsapplicationsqConditionalmovestoreducebranchfrequencyqIndexaddressmodes(register+register)sEmbeddedapplicationenhancementsqSpecializedDSPintegerMultiply-Accumulateinstructionand3operandmultiplyinstructionqIandDcachelockingbysetqOptionaldedicatedexceptionvectorforinterruptssFullystaticCMOSdesignwithpowerdownlogicqStandbyreducedpowermodewithWAITinstructionq3.6Wattstypicalpower@200MHzq2.5Vcorewith3.3VIO’ss208-leadCQFP,cavity-uppackage(F17)s208-leadCQFP,invertedfootprint(F24),IntendedtoduplicatethecommercialQEDfootprints179-pinPGApackage(FutureProduct)(P10)Preliminary64-BitSuperscalerMicroprocessorACT5261DESCRIPTIONTheAeroflexACT5261isahighlyintegratedsuperscalarmicroprocessorthatimplementsasupersetoftheMIPSIVInstructionSetArchitecture(ISA).Ithasahighperformance64-bitintegerunit,ahighthroughput,fullypipelined64-bitfloatingpointunit,anoperatingsystemfriendlymemorymanagementunitwitha48-entryfullyassociativeTLB,a32KByte2-waysetassociativeinstructioncache,a32KByte2-waysetassociativedatacache,andahigh-performance64-bitsysteminterface.TheACT5261canissuebothanintegerandafloatingpointinstructioninthesamecycle.TheACT5261isideallysuitedforhigh-endembeddedcontrolapplicationssuchasinternetworking,highperformanceimagemanipulation,highspeedprinting,and3-Dvisualization.HARDWAREOVERVIEWTheACT5261offersahigh-levelofintegrationtargetedathigh-performanceembeddedapplications.ThekeyelementsoftheACT5261arebrieflydescribedbelow.SuperscalarDispatchTheACT5261hasanefficientasymmetricsuperscalardispatchunitwhichallowsittoissueanintegerinstructionandafloating-pointcomputationinstructionsimultaneously.Withrespecttosuperscalarissue,integerinstructionsincludealu,branch,load/store,andfloating-pointload/store,whilefloating-pointcomputationinstructionsincludefloating-pointadd,subtract,combinedmultiply-add,converts,etc.Incombinationwithitshighthroughputfullypipelinedfloating-pointexecutionunit,thesuperscalarcapabilityoftheACT5261providesunparalleledprice/performanceincomputationallyintensiveembeddedapplications.CPURegistersLikeallMIPSISAprocessors,theACT5261CPUhasasimple,cleanuservisiblestateconsistingof32generalpurposeregisters,twospecialpurposeregistersforintegermultiplicationanddivision,aprogramcounter,andnoconditioncodebits.PipelineForintegeroperations,loads,stores,andothernon-floating-pointoperations,theACT5261usesthesimple5-stagepipelinealsofoundintheRM52xxfamily,4600,R4700,andR5000.Inadditiontothisstandardpipeline,theACT5261usesanextendedsevenstagepipelineforfloating-pointoperations.LiketheACT5260,theACT5261doesvirtualtophysicaltranslationinparallelwithcacheaccess.IntegerUnitLiketheACT5260,theACT5261implementstheMIPSIVInstructionSetArchitecture,andisthereforefullyupwardcompatiblewithapplicationsthatrunonprocessorsimplementingtheearliergenerationMIPSI-IIIinstructionsets.Additionally,theACT5261includestwoimplementationspecificinstructionsnotfoundinthebaselineMIPSIVISAbutthatareusefulintheembeddedmarketplace.DescribedindetailintheQEDRM5261datasheet,theseinstructionsareintegermultiply-accumulateand3-operandintegermultiply.TheACT5261integerunitincludesthirty-twogeneralpurpose64-bitregisters,aload/storearchitecturewithsinglecycleALUoperations(add,sub,logical,shift)andanautonomousmultiply/divideunit.Additionalregisterresourcesinclude:theHI/LOresultregistersforthetwo-operandintegermultiply/divideoperations,andtheprogramcounter(PC).RegisterFileTheACT5261hasthirty-twogeneralpurposeregisterswithregisterlocation0hardwiredtozero.Theseregistersareusedforscalarintegeroperationsandaddresscalculation.Theregisterfilehastworeadportsandonewriteportandisfullybypassedtominimizeoperationlatencyinthepipeline.ALUTheACT5261ALUconsistsoftheintegeradder/subtractor,thelogicunit,andtheshifter.Theadderperformsaddresscalculationsinadditiontoarithmeticoperations,thelogicunitperformsalllogicalandzeroshiftdatamoves,andtheshifterperformsshiftsandstorealignmentoperations.Eachoftheseunitsisoptimizedtoperformalloperationsinasingleprocessorcycle.ForadditionalDetailInformationregardingtheoperationoftheQuantumEffectDesign(QED)RISCMark™RM5261™,64-BitSuperscalarMicroprocessorseethelatestQEDdatasheet(Revision1.0July1998).1.8401.8801.700BSC1.700BSC1.8401.880VUTRPNMLKJHGFEDCBA123456788BottomViewSideViewFuturePackage–"P10"–PGA179Pins(Advanced)1.131(28.727)SQ1.109(28.169)SQ1.009(25.63).9998(25.37)51Spacesat.0197(51Spacesat.50).0236(.51).0158(.49)52120815615710510453Pin1ChamferDetail"A"0°±5°1.331(33.807)1.269(32.233).005(.127).008(.258).055(1.397)REF.055(1.397).045(1.143).115(2.921)MAX.960(24.384)SQREF.130(3.302)MAX.010RMIN.010RMIN.009(.253).007(.178).015(.381).009(.229).100(2.540).080(2.032)PackageInformation–"F17"–CQFP208LeadsDetail"A"BSC.100.221MAX.018.050Note:PinrotationisoppositeofQEDsPQUADduetocavity-upconstruction..035(.889).025(.635)Units:Inches(Millimeters)ACT5261MicroprocessorCQFPPinouts–"F17"Pin#FunctionPin#FunctionPin#FunctionPin#Function1Vcc(3.3V)53NC105Vcc(3.3V)157NC2NC54NC106NMI*158NC3NC55NC107ExtRqst*159NC4Vcc(3.3V)56Vcc(3.3V)108Reset*160NC5Vss57Vss109ColdReset*161Vcc(3.3V)6SysAD458ModeIn110VccOK162Vss7SysAD3659RdRdy*111BigEndian163SysAD288SysAD560WrRdy*112Vcc(3.3V)164SysAD609SysAD3761ValidIn*113Vss165SysAD2910Vcc(2.5V)62ValidOut*114SysAD16166SysAD6111Vss63Release*115SysAD48167Vcc(2.5V)12SysAD664VccP116Vcc(2.5V)168Vss13SysAD3865VssP117Vss169SysAD3014Vcc(3.3V)66SysClock118SysAD17170SysAD6215Vss67Vcc(2.5V)119SysAD49171Vcc(3.3V)16SysAD768Vss120SysAD18172Vss17SysAD3969Vcc(3.3V)121SysAD50173SysAD3118SysAD870Vss122Vcc(3.3V)174SysAD6319SysAD4071Vcc(2.5V)123Vss175SysADC220Vcc(2.5V)72Vss124SysAD19176SysADC621Vss73SysCmd0125SysAD51177Vcc(2.5V)22SysAD974SysCmd1126Vcc(2.5V)178Vss23SysAD4175SysCmd2127Vss179SysADC324Vcc(3.3V)76SysCmd3128SysAD20180SysADC725Vss77Vcc(3.3V)129SysAD52181Vcc(3.3V)26SysAD1078Vss130SysAD21182Vss27SysAD4279SysCmd4131SysAD53183SysADC028SysAD1180SysCmd5132Vcc(3.3V)184SysADC429SysAD4381Vcc(3.3V)133Vss185Vcc(2.5V)30Vcc(2.5V)82Vss134SysAD22186Vss31Vss83SysCmd6135SysAD54187SysADC132SysAD1284SysCmd7136Vcc(2.5V)188SysADC533SysAD4485SysCmd8137Vss189SysAD034Vcc(3.3V)86SysCmdP138SysAD23190SysAD3235Vss87Vcc(2.5V)139SysAD55191Vcc(3.3V)36SysAD1388Vss140SysAD24192Vss37SysAD4589Vcc(2.5V)141SysAD56193SysAD138SysAD1490Vss142Vcc(3.3V)194SysAD3339SysAD4691Vcc(3.3V)143Vss195Vcc(2.5V)40Vcc(2.5V)92Vss144SysAD25196Vss41Vss93Int0*145SysAD57197SysAD242SysAD1594Int1*146Vcc(2.5V)198SysAD3443SysAD4795Int2*147Vss199SysAD344Vcc(3.3V)96Int3*148SysAD26200SysAD3545Vss97Int4*149SysAD58201Vcc(3.3V)46ModeClock98Int5*150SysAD27202Vss47JTDO99Vcc(3.3V)151SysAD59203NC48JTDI100Vss152Vcc(3.3V)204NC49JTCK101NC153Vss205NC50JTMS102NC154NC206NC51Vcc(3.3V)103NC155NC207Vcc(3.3V)52Vss104NC156Vss208VssSampleOrderingInformationPartNumberScreeningSpeed(MHz)PackageACT-5261PC-133F17IIndustrialTemperature133208LeadCQFPACT-5261PC-150F17CCommercialTemperature150208LeadCQFPACT-5261PC-200F17TMilitaryTemperature200208LeadCQFPACT-5261PC-250F17MMilitaryScreening250208LeadCQFPAeroflexCircuitTechnology35SouthServiceRoadPlainviewNewYork11803Telephone:(516)694-6700FAX:(516)694-6715TollFreeInquiries:(800)843-1553www.aeroflex.com/act1.htmE-Mail:sales-act@aeroflex.comSpecificationssubjecttochangewithoutnotice.CIRCUITTECHNOLOGYPartNumberBreakdownACT–5261PC–200F17MAeroflexCircuitTechnologyBaseProcessorType133=133MHz150=150MHz200=200MHz250=250MHz266=266MHz(FutureOption)CacheStylePackageType&SizeC=CommercialTemp,0°Cto+70°CI=IndustrialTemp,-40°Cto+85°CT=MilitaryTemp,-55°Cto+125°CM=MilitaryTemp,-55°Cto+125°C,Screened*Q=MIL-PRF-38534Compliant/SMDifapplicableScreening*ScreenedtotheindividualtestmethodsofMIL-STD-883PC=PrimaryCacheMaximumPipelineFreq.SurfaceMountPackageF17=1.120"SQ208LeadCQFPF24=1.120"SQInverted208LeadCQFPThru-HolePackageP10=1.86"SQPGA179pinswithshoulder(Advanced)