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'LJLWDO9LVXDO,QWHUIDFH5HYLVLRQ3DJHRIDigitalVisualInterfaceDVIRevision1.002April1999'LJLWDO9LVXDO,QWHUIDFH5HYLVLRQ3DJHRITheDigitalDisplayWorkingGroupPromoters(“DDWGPromoters”)areIntelCorporation,SiliconImage,Inc.,CompaqComputerCorporation,FujitsuLimited,Hewlett-PackardCompany,InternationalBusinessMachinesCorporation,andNECCorporationTHISSPECIFICATIONISPROVIDEDASISWITHNOWARRANTIESWHATSOEVER,INCLUDINGANYWARRANTYOFMERCHANTABILITY,NONINFRINGEMENT,FITNESSFORANYPARTICULARPURPOSE,ORANYWARRANTYOTHERWISEARISINGOUTOFANYPROPOSAL,SPECIFICATIONORSAMPLE.TheDDWGPromotersdisclaimallliability,includingliabilityforinfringementofanyproprietaryrights,relatingtouseofinformationinthisspecification.Nolicense,expressorimplied,byestoppelorotherwise,toanyintellectualpropertyrightsisgrantedherein.TheDDWGPromotersmayhavepatentsand/orpatentapplicationsrelatedtotheDigitalVisualInterfaceSpecification.TheDDWGPromotersintendtomakeavailabletotheindustryanAdopter’sAgreementthatwillincludealimited,reciprocal,royalty-freelicensetotheelectricalinterfaces,mechanicalinterfaces,signals,signalingandcodingprotocols,andbusprotocolsdescribedin,andrequiredby,theDigitalVisualInterfaceSpecificationRevision1.0finalizedandpublishedbytheDDWGPromoters.Toencourageearlyadoption,AdopterswillberequiredtoreturntheirexecutedcopyoftheAdopter'sAgreementduringan“AdoptionPeriod”whichiswithinoneyearaftertheDVISpecificationRevision1.0isfirstpublishedorwithinoneyearaftertheAdopterfirstsellsproductsthatcomplywiththatspecification,whicheverislater.ThisAdoptionPeriodrequirementwillgivepartiesampletimetounderstandthebenefitsofbecominganAdopterandencouragethemtorememberthisimportantstep.Copyright©DDWGPromoters1999.*Third-partybrandsandnamesarethepropertyoftheirrespectiveowners.AcknowledgementTheDDWGacknowledgestheconcertedeffortsofemployeesofSiliconImage,Inc.andMolexInc.,whoauthoredmajorportionsofthisspecification.Bothcompanieshavemadeasignificantcontributionbydevelopingandlicensingtotheindustrythecoretechnologiesuponwhichthisindustryspecificationisbased;transitionminimizeddifferentialsignaling(T.M.D.S.)technologyfromSiliconImage,andconnectortechnologyfromMolex.REVISIONHISTORY02Apr99-1.0InitialSpecificationReleaseDigitalVisualInterfaceRevision1.0Page3of76Acknowledgement......................................................................................................2REVISIONHISTORY...................................................................................................21.Introduction................................................................................................51.1.ScopeandMotivation.......................................................................................51.2.PerformanceScalability....................................................................................61.2.1.BandwidthEstimation....................................................................................71.2.2.ConversiontoSelectiveRefresh...................................................................81.3.RelatedDocuments..........................................................................................81.3.1.VESADisplayDataChannel(DDC)Specification........................................81.3.2.VESAExtendedDisplayIdentificationData(EDID)Specification................81.3.3.VESAVideoSignalStandard(VSIS)Specification.......................................81.3.4.VESAMonitorTimingSpecifications(DMT).................................................91.3.5.VESAGeneralizedTimingFormulaSpecification(GTF)..............................91.3.6.VESATimingDefinitionforLCDMonitorsSpecification...............................91.3.7.CompatibilitywithOtherT.M.D.S.BasedImplementations..........................92.ArchitecturalRequirements...................................................................102.1.T.M.D.S.Overview..........................................................................................102.2.PlugandPlaySpecification............................................................................102.2.1.Overview......................................................................................................102.2.2.T.M.D.S.LinkUsageModel........................................................................112.2.3.HighColorDepthSupport...........................................................................132.2.4.LowPixelFormatSupport...........................................................................142.2.5.EDID............................................................................................................142.2.6.DDC.............................................................................................................152.2.7.Gamma........................................................................................................152.2.8.Scaling.........................................................................................................152.2.9.HotPlugging...............................