微机原理实验部分.pdf

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1、82503DUALSERIALTRANSCEIVER(DST)82503PRODUCTFEATURESETOVERVIEWYSingleComponentEthernet*InterfaceYDiagnosticLoopbacktoBoth802.310BASE-TandAUIYReset,LowPowerModesYAutomaticorManualPortSelectionYNetworkStatusIndicatorsYManchesterEncoder/DecoderandYDefeatableJabberTimerClockRecoveryYUs

2、erTestModesYNoGlueInterfacetoIndustry-StandardLANControllersY10MHzTransmitClockGeneratorÐIntel82586,82590,82593and82596YOneMicronCHMOS**IV(Px48)ÐAMD7990(LANCE*)TechnologyÐNationalSemiconductor8390andYSingle5-VSupply83932(SONIC*)ÐWesternDigital83C690ÐFujitsu86950(Etherstar*)INTERFA

3、CEFEATURESTPEAUIYComplieswith10BASE-T,IEEEStd.YComplieswithIEEE802.3AUIStandard802.3i-1990forTwistedPairEthernetYDirectInterfacetoAUITransformersYSelectablePolaritySwitchingYOn-ChipAUISquelchYDirectInterfacetoTPEAnalogFiltersYOn-ChipTPESquelchYDefeatableLinkIntegrity(LI)YSupportof

4、CableLengthsl100mAblockdiagramofatypicalapplicationisshowninFigure1.The82503DualSerialTransceiverisahigh-inte-grationCMOSdevicedesignedtosimplifyinterfacingindustrystandardEthernetLANControllerstoIEEE802.3localareanetworkapplications(10BASE5,10BASE2,and10BASE-T).Thecomponentsuppor

5、tsbothanattachmentunitinterface(AUI)andaTwistedPairEthernetinterface(TPE).ItallowsOEMstodesignastate-of-the-artmediainterfacethatisjumperlessandfullyautomatic.The82503includeson-chipAUIandTPEdriversandreceivers;itoffersdesignersacost-effective,integratedsolutionforinterfacingLANco

6、ntrol-lerstothewiremedium.**CHMOSisapatentedprocessofIntelCorporation.*EthernetisaregisteredtrademarkofXeroxCorporation.LANCEisaregisteredtrademarkofAdvancedMicroDevices.EtherstarisaregisteredtrademarkofFujitsuElectronics.SonicisaregisteredtrademarkofNationalSemiconductorCorporati

7、on.*Otherbrandsandnamesarethepropertyoftheirrespectiveowners.InformationinthisdocumentisprovidedinconnectionwithIntelproducts.Intelassumesnoliabilitywhatsoever,includinginfringementofanypatentorcopyright,forsaleanduseofIntelproductsexceptasprovidedinIntel'sTermsandConditionsofSale

8、forsuchproducts.Intelretainstheri