Modeling and Verification of High-Speed Wired Links .pdf

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1、ModelingandVerificationofHigh-SpeedWiredLinkswithVerilog-AMSMing-taHsiehGeraldE.SobelmanDepartmentofElectricalandComputerEngineeringDepartmentofElectricalandComputerEngineeringUniversityofMinnesotaUniversityofMinnesotaMinneapolis,MN55455,USAMinneapolis,MN5545

2、5,USAmthsieh@umn.edusobelman@umn.eduAbstract—Behavioralmodelingwithvirtualbuilt-inself-testtimethatwouldberequired[4].Usingbehavioralmodelingverificationofhigh-speedwiredlinkdesignsisdescribedinthisletsdesignerseasilyexploredifferentsystem-levelarchitec-paper

3、.Ourprocedureisbasedonprinciplesoftop-downturesattheearlydesignstagesandtherebyrapidlyperformmixed-signaldesigncombinedwithabehavioraldescriptionsystem-levelverification,Thus,includingbehavioralmodelslanguageandmixed-modesimulations.TheuseofVerilog-intheovera

4、lldesignprocessreducestimetomarketandAMSisappliednotonlytocircuitmodelingbutalsoforrepre-helpstoensurefirsttimecorrectsilicon.sentingnoiseontheinputsignal.Thisapproachprovidessys-tem-leveljittertoleranceestimation,circuitcriticalpathsearchClockwithJitterModel

5、ingandoveralldesignverification.Codingexamplesandsimula-ParallelReferenceParallelDataOutputClockInputDataInputtionresultsareincluded.PRBSDatawithJitterModelingClockDeserializerSerializerSynthesizerI.INTRODUCTIONTheideaoftop-downmixed-signalcircuitdesignusinga

6、ClockandDataDataVerificationRecoverybehavioraldescriptionforsystem-levelmodelinghasbeenaCriticalPathDetectiontopicofresearchinterest[1-3].Typically,systemarchitec-ReceiverTransmitterturedesignersderivetherequiredsystemorcircuitspecifica-InputBufferOutputBuffe

7、rtionforcertaintargetedapplications.Ontheotherhand,withEqualizerwithPre-emphasiscircuitdesignerswouldsearchforatypeofcircuitwhichisDataVerificationthebestfitfortherequiredspecificationswithminimumTransmissionChannelEye-OpeningMonitoringISI,Random,andSinusoida

8、ldesigncostandtimeandhavingsuperiorperformance.Be-JitterGenerationforegoingaheadwiththedetailedtransistor-leveldesign,TransmitterReceiverbehavioralmodelsareusuallyusedtoverifythedesignatt