PCIE接口定义金手指板卡.docx

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1、PCIExpress(PCIe,PCI-e)isahigh-speedserialcomputerexpansionbusstandard.PCIExpressasahigh-bandwidth,lowpincount,serial,interconnecttechnology.ItwasdesignedtoreplacetheolderPClandAGPbusstandards.PCIehasnumerousimprovementsovertheolderstandards,includinghighermaximumsystembusthroughput,lowerI/Opincounta

2、ndsmallerphysicalfootprint,betterperformancescalingforbusdevices,amoredetailederrordetectionandreportingmechanism(AdvancedErrorReporting,AER),andnativehot-swapfunctionality.PCIExpressarchitectureprovidesahighperformanceI/OinfrastructureforDesktopPlatformswithtransferratesstartingat2.5Gigatransferspe

3、rsecondoveraX1PCIExpresslaneforGigabitEthernet,TVTuners,Firewire1394abcontrollers,andgeneralpurposeI/O.PCIExpressarchitectureprovidesahighperformancegraphicsinfrastructureforDesktopPlatformsdoublingthecapabilityofexistingAGP8xdesignswithtransferratesof4.0Gigabytespersecondoverax!6PCIExpresslaneforgr

4、aphicscontrollers.Alaneiscomposedoftwodifferentialsignalingpairs,withonepairforreceivingdataandtheotherfortransmitting.ExpressCardutilizingPCIExpressinterface,developedbythePCMCIAgroupformobilecomputers.PCIExpressAdvancedPowerManagementfeatureshelptoextendplatformbatterylifeandtoenableuserstoworkany

5、where,withoutanACpowersource.ThePCIExpresselectricalinterfaceisalsousedinsomecomputerstorageinterfacesSATAExpressandM.2.ThebroadadoptionofPCIExpressinthemobile,enterpriseandcommunicationsegmentsenablesconvergencethroughthere-useofacommoninterconnecttechnology.PCI-Eisaserialbuswhichusestwolow-voltage

6、differentialLVDSpairs,at2.5Gbsineachdirectiononetransmit,andonereceivepair.PCIExpresssupportsIx2.5Gbps,2x,4x,8x,12x,16x,and32xbuswidthstransmit/receivepairs.ThedifferentialpinsLaneslistedinthepinouttableaboveareLVDSwhichstandsfor:LowVoltageDifferentialSignaling.PinSideBConnectorSideAConnector#NameDe

7、scriptionNameDescription1+12v+12voltpowerPRSNT#1Hotplugpresencedetect2+12v+12voltpower+12v+12voltpower3+12v+12voltpower+I2v+12voltpower4GNDGroundGNDGround5SMCLKSMBusclockJTAG2TCK6SMDATSMBusdataJTAG3TDl7GNDGroundJTAG4TDO8+3.3v+3.3voltpowerJTAG5TMS9JTAGI+TRST#+3.3v+3.3voltpower103.3Vaux3.3vvoltpower+3

8、.3v+3.3voltpower11WAKE#LinkReactivationPWRGDPowerGoodMechanicalKey12RSVDReservedGNDGround13GNDGroundREFCLK+ReferenceClock14HSOp(O)TransmitterLane0,REFCLK-Differentialpair15HSOn(O)DifferentialpairGNDGround16GNDGroundHSIp(O)ReceiverLane0,17PRSNT#2HotplugdetectHSIn(O)DifferentialpairAlA16GNDGround18GND

9、GroundPCI-Express4xConnectorPin-OutAlA32PinSideBConnectorSideAConnector#NameDescriptionNameDescription1+I2v+12voltpowerPRSNT#1Hotplugpresencedetect2+12v+12voltpower+12v+12voltpower3+12v+12voltpower+12v+12voltpower4GNDGroundGNDGround5SMCLKSMBusclockJTAG2TCK6SMDATSMBusdataJTAG3TDI7GNDGroundJTAG4TDO8+3

10、.3v+3.3voltpowerJTAG5TMS9JTAGI+TRST#+3.3v+3.3voltpower103.3Vaux3.3vvoltpower+3.3v+3.3voltpowerIIWAKE#LinkReactivationPWRGDPowerGoodMechanicalKey12RSVDReservedGNDGround13GNDGroundREFCLK+ReferenceClock14HSOp(O)TransmitterLane0,REFCLK-Differentialpair15HSOn(O)DifferentialpairGNDGround16GNDGroundHSIp(O)

11、ReceiverLane0,17PRSNT#2HotplugdetectHSIn(O)Differentialpair18GNDGroundGNDGround19HSoPTransmitterLane1,RSVDReserved20HSOn(I)DifferentialpairGNDGround21GNDGroundHSIp(I)ReceiverLane1,22GNDGroundHSIn(I)Differentialpair23HSOPTransmitterLane2,GNDGround24HSonDifferentialpairGNDGround25GNDGroundHSIp(2)Recei

12、verLane2,26GNDGroundHSIn(2)Differentialpair27HS0p(3)TransmitterLane3,GNDGround28HS0n(3)DifferentialpairGNDGround29GNDGroundHSIp(3)ReceiverLane3,30RSVDReSCrVCdHSIn(3)Differentialpair31PRSNT#2HotplugdetectGNDGround32GNDGroundRSVDReservedPCI-Express8xConnectorPin-OutAlA4Side A ConnectorPinSideBConnecto

13、r# NameDescriptionNameDescription1+12v+12voltpowerPRSNT#!Hotplugpresencedetect2+12v+12voltpower+12v+12voltpower3+12v+12voltpower+12v+12voltpower4GNDGroundGNDGround5SMCLKSMBusclockJTAG2TCK6SMDATSMBusdataJTAG3TDl7GNDGroundJTAG4TDO8+3.3v+3.3voltpowerJTAG5TMS9JTAGl+TRST#+3.3v+3.3voltpower103.3Vaux3.3vvo

14、ltpower+3.3v+3.3voltpower11WAKE#LinkReactivationPWRGDPowerGoodMechanicalKeycard12RSVDReservedGNDGround13GNDGroundREFCLK+ReferenceClockDifferential14HSOp(O)TransmitterLane0,REFCLK-pair30RSVDReservedHSIn(3)Differentialpair31PRSNT#2HotplugdetectGNDGround32GNDGroundRSVDReserved33HSOp(4)TransmitterLane4,RSVDReserved3