标签: ds2155
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TheDallasSemiconductorDS2155orDS21455single-chiptransceiver(SCT)canbeusedtocreateaninterfacethatiscompatiblewiththeJapaneseJJ-20.11standard.BoththeDS2155andDS21455haveadigitalmultiplexerandI/OinterfacethatprovideaccesstotheclockandbipolardatasignalsbetweentheframerandLIUsections.UsingaFPGAorCPLD,thedatasteamcanbemodifiedtosupporttheJJ-20.11standard.BecausetheLIUalreadyhastheabilitytocodeanddecodetheCodedMarkInversion(CMI)signalusedinJJ-20.11,onlyaslightmodificationisneededtoincreasethegainofthereceivesignal.……
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DS21458是一款四端口T1/E1/J1单片收发器(SCT)，具有和DS2155单端口T1/E1/J1SCT相同的寄存器组。DS2155和DS21458具有相同的软件架构，因而从单端口的DS2155向四端口的DS21458移植比较容易。本文详细说明了DS2155和DS21458之间的细微差异。……
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DS2155andDS26521SoftwareComparison……
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ThisapplicationnotediscussesthedifferencesbetweentheDS2155T1/E1/J1SingleChipTransceiverandtheDS26502T1/E1/J1/64KCCBitsElementregistermaps.……
