pdf文档 FPGA可编程逻辑器件芯片XC6SLX9-2CP

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摘要:GTXTransmitter(TX)ThischaptershowshowtoconfigureanduseeachofthefunctionalblocksinsidetheGTXtransmitter.TransmitterOverviewEachGTXtransceiverintheGTX_DUALtileincludesanindependenttransmitter,whichconsistsofaPCSandaPMA.Figure6-1showsthefunctionalblocksofthetransmitter.ParalleldataflowsfromtheFPGAintotheFPGATXinterface,throughthePCSandPMA,andthenouttheTXdriverashigh-speedserialdata.RefertoAppendixE,“LowLatencyDesign,”forlatencyinformationonthisblockdiagram.X-RefTarget-Figure6-1LoopbackfromRX(samechannel)978TXTXTXOOBDriver&PreempPCISharedPMAPLLDivider4PolarityControlPISO2PhaseAdjustFIFO8B/10BEncoder310FPGATXInterface5TXGearbox6TX-PMAFromSharedPMAPLL1TX-PCSPRBSGeneratorTXPIPEControlUG

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