讲义参考文稿023o he bp hw detailed design

ED-023O-HEHWDetailed版本 作 日 项目编 部 023OBackneLowLevelHardwareDesignSpecificationOMS前 编写目 相关文 参考资 板卡结 功能框 关键器 详细设 SCC与backne的接 Backne与Linecards的接 Backne与Linecard1的接 Backne与Linecard2的接 Backne与Linecard3的接 Backne与Linecard4的接 Backne与Fancard的接 Backne与Powercard的接 Layout指 分层结 整体布 走线规 附 原理 本文档为OMS023O项目中Backne的详细设计。Back ne的主要功能为SCC，LineCards，PowerCards，FANCard提供互联。这里详细描述了Back ne与各个卡片接口的定义及功OMS023OHWRequirementList.xlsED-RD001-HE-00000-OSN900ABackneLowLevelHardwareDesign SystemControllerED-RD001-HE-00000-OSN900ABackneLowLevelHardwareDesign一共有八个连接器在这个Backne上,下图为这八个连接器的平面分布图LinecardLinecardLinecardLinecardLinecardI2CLineCardI2C地址由Backne连接器上的SlotID1,SlotID0这两个信号来决Linecard1(00Linecard3(10Linecard2(01Linecard4(11ConnectorPackageVendorCONNHEADERVERT2MM8POS8FanPress55PINSCC,LinePressWIRINGPowercardsSIDEBackne与SCC的接TableABCDE1P(OUTPUT)2N(OUTPUT)3SCLKSCLKP(INPUT)SCLKSCLK4SDA(I/OSDA(I/ON(INPUT)SDA(I/OSDA(I/O56P(OUTPUT)7N(OUTPUT)8P(INPUT)9N(INPUT)Pin脚的功能定义.Table2:Signaldescription12Signal3GroundofFan4SLOT_IN(0~3LineCardsModuleInsertInorPlug5FANSLOTFanModuleInsertInorPlug6Powerboard1insertinthe7Powerboard2insertinthe8I2Cclock,whichbetweenSCCandLine9SDA(0-I2Cdata,whichbetweenSCCandLineEthernetPHYSignal，whichbetweenSCCandLinecardEthernetPHYSignal，whichbetweenSCCandLinecardSerialdatasignal，whichbetweenSCCandLinecardSerialdatasignal，whichbetweenSCCandLinecardMODULERST(0~3ResetLineMODULE_ALM(0~3AlarmSignalswhichgeneratedbylineFAN_FAULT(0~3FaultalarmsignalsgeneratedbyfanPoweralarmsignalwhenthevoltageisunderpowersupplyPWRALMPoweralarmsignalwhenthefuseisoutof+5V_ALM+5VoutputpoweralarmsignalofpowerboardAandBackne与Linecards的接Backne与Linecard1的接口Pin脚分布图TableABCDE1----2----3456AIS_IN_0AIS_OUT_0AIS_OUT_17AIS_IN_2(I/OAIS_OUT_289--------Table1-2-34Signal5LineCardsInsertInorPlug6I2Cclock,whichbetweenSCCandLine7I2Cdata,whichbetweenSCCandLine8AlarmSignalofLinecards9ResetLinecardswhichgeneratedbyAIS_IN(0~2InputRedundancySignalbetweenLineAIS_OUT(0~2OutputRedundancySignalbetweenLineSLOT_IDThesignalforslotidentificationBackne与Linecard2的接口Pin脚分布图TableABCDE1----2----3456AIS_IN_0AIS_OUT_0AIS_OUT_17AIS_IN_2(I/OAIS_OUT_289--------Pin脚功能的定义与LineCard1TableSerialdatareceivesignalbetweenSCCandLinecardSerialdatatransmitsignalbetweenSCCandLinecardBackne与Linecard3的接口Pin脚分布图TableABCDE1----2----3456AIS_IN_0AIS_OUT_0AIS_OUT_17AIS_IN_2(I/OAIS_OUT_289--------Pin脚功能的定义与LineCard1Table EthernetPHYreceiveSignal，whichbetweenSCCandLinecard3 EthernetPHYtransmitSignal，whichbetweenSCCandLine Backne与Linecard4的接口Pin脚分布图TableABCDE1----2----3456AIS_IN_0AIS_OUT_0AIS_OUT_17AIS_IN_2(I/OAIS_OUT_289----------Pin脚功能的定义与LineCard1TableSerialdatareceivesignalbetweenSCCandLinecardSerialdatatransmitsignalbetweenSCCandLinecard EthernetPHYreceiveSignal，whichbetweenSCCandLinecard4 EthernetPHYtransmitSignal，whichbetweenSCCandLine Backne与Fancard的接TableABCD123456Table1Powersupplyfor2Groundsignalfor3Signaltoindicatefanboardhasfault4Signaltoindicatefanboardinsertinorplug nePowercards ne与两块PowerCard相连。两块PowerCard与Backne接口的Pin脚分布图下Table13:PowerBoardABCDE1----2----3456789Table14:PowerBoardABCDE1----2----3456789Table1-2-34FANPowersupplyforfan5Signal6Groundoffanpower7PWRALMPoweralarmsignalwhenthevoltageisunderpowersupplyrange8Poweralarmsignalw