文档介绍：IntroductiontoPCIExpress†AHardwareandSoftwareDeveloper’©-9702846-9-1Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmittedinanyformorbyanymeans,electronic,mechanical,photocopying,recording,scanningorotherwise,exceptaspermittedunderSections107or108ofthe1976UnitedStatesCopyrightAct,withouteitherthepriorwrittenpermissionofthePublisher,orauthorizationthroughpaymentoftheappropriateper-copyfeetotheCopyrightClearanceCenter,222RosewoodDrive,Danvers,MA01923,(978)750-8400,fax(978)750-,IntelPress,IntelCorporation,5200NEElamYoungParkway,JF4-326,Hillsboro,OR97124--Mail:.******@.IntelandPentiumareregisteredtrademarksofIntelCorporationoritssubsidiariesintheUnitedStatesandothercountries.†?anizationofThisBook7BeyondPCI7TheTechnology8AdoptingPCIExpress9Chapter2ThePCILegacy,esses,eptance14DefinedSpecifications15ProcessorArchitectureIndependence16FullBusMastering18PlugandPlayOperation18HighPerformanceLowCostImplementation19iiiivIntroductiontoPCIExpressPCIChallenges19BandwidthLimitations19HostPinLimitations21InabilitytoSupportReal-Time(Isochronous)DataTransfers23InabilitytoAddressFutureI/ORequirements24PCIMovingForward25Chapter3GoalsandRequirements27Scalability,Stability,andPerformance27StabilityRequirement:StabilityfortheNextDecade28ScalabilityRequirement:GrowthOptionsfortheFuture29PerformanceRequirement:PinandLinkEfficiency31MarketSegmentSupport39MarketSegmentRequirement:Mobile39MarketSegmentRequirement:Desktop40MarketSegmentRequirement:munications41System-LevelCostParity42CostRequirement:monConnectorManufacturingTechnology43CostRequirement:RoutinginFour-LayerMotherboards43CostRequirement:UsabilityonMultipleSiliconProcessTechnology44I/OSimplifica