EDID标准

VESAVideoTimingBlockExtension(VTB-EXT)StandardReleaseACopyright1994-2003VideoElectronicsStandardsAssociationPage1of32VESAVTB-EXTStandardVideoElectronicsStandardsAssociation920HillviewCourt,Suite140Phone:[phone]Milpitas,CA95035Fax:[phone]VESAVIDEOTIMINGBLOCKEXTENSIONDATASTANDARDReleaseANovember24,2003PurposeThisstandarddefinesdataformatstocarryconfigurationinformation,allowingoptimumuseofdisplays.SummaryThisdocument(ReleaseA)describesversion1ofa128-bytedatastructureknownastheVideoTimingBlockExtension(VTB-EXT)”.TheVTB-EXTdatastructuremaycontainuptosixDetailedTimingBlock(DTB)Descriptors,orupto40CoordinatedVideoTiming(CVT)Descriptors,orupto61StandardTiming(ST)Descriptors,oracombinationofDTB,CVTandSTvideotimingdescriptors.VTB-EXTrequirestheuseofbaseEDIDdatastructureversion1.3(ornewer).UseofVTB-EXTdescribedinthisdocumentrequiresuseoftheaddressingmethoddescribedintheEnhancedDDCStandard(E-DDC).NoteThisissueoftheVTB-EXTdocumentcontainsspecificationsforthemandatory/optionaldatastructurescontainedinthisextensionblock.ThebaseEDIDdatastructure(version1.3ornewer)isdefinedinaseparatedocument.SPECIALNOTICE:ThereareseveralreferencestoGTFintheVTB-EXTStandard.VESAisintheprocessofreplacingtheGTFStandardwiththeCVTStandard.Whenthisoccurs,allGTFreferencesintheVTB-EXTStandardshallbereplacedwithCVT.VESAVideoTimingBlockExtension(VTB-EXT)StandardReleaseACopyright1994-2003VideoElectronicsStandardsAssociationPage2of32PrefaceIntellectualPropertyCopyright©1994-2003VideoElectronicsStandardsAssociation.Allrightsreserved.Whileeveryprecautionhasbeentakeninthepreparationofthisstandard,theVideoElectronicsStandardsAssociationanditscontributorsassumenoresponsibilityforerrorsoromissions,andmakenowarranties,expressedorimplied,offunctionalityorsuitabilityforanypurpose.TrademarksAlltrademarksusedwithinthisdocumentarethepropertyoftheirrespectiveowners.VESA,DDC,EDID,GTF,CVT,etc.aretrademarksoftheVideoElectronicsStandardAssociation.PatentsVESAproposalsandstandardsareadoptedbytheVideoElectronicsStandardsAssociationwithoutregardastowhethertheiradoptionmayinvolveanypatentsorarticles,materials,orprocesses.Suchadoptiondoesnotassumeanyliabilitytoanypatentowner,nordoesitassumeanyobligationwhatsoevertopartiesadoptingtheproposalsorstandardsdocuments.SupportforthisStandardClarificationsandapplicationnotestosupportthisstandardmaybewritten.Toobtainthelateststandardandanysupportdocumentation,contactVESA.Ifyouhaveaproduct,whichincorporatesEDID,youshouldaskthecompanythatmanufacturedyourproductforassistance.Ifyouareamanufacturer,VESAcanassistyouwithanyclarificationyoumayrequire.AllcommentsorreportederrorsshouldbesubmittedinwritingtoVESAusingoneofthefollowingmethods.•Fax:[phone],directthisnotetoTechnicalSupportatVESA•e-mail:[e-mail]•mail:TechnicalSupportVideoElectronicsStandardsAssociation920HillviewCourt,Suite140Milpitas,CA95035•website:@orgVESAVideoTimingBlockExtension(VTB-EXT)StandardReleaseACopyright1994-2003VideoElectronicsStandardsAssociationPage3of32RevisionHistoryNovember24,2003–Initialreleaseofthestandard.AcknowledgmentsThisdocumentwouldnothavebeenpossiblewithouttheeffortsoftheVESADisplayCommittee.Inparticular,thefollowingindividualsandtheircompaniescontributedsignificanttimeandknowledgetothiseditionoftheVTB-EXTdocument.SyedAtharHussainATITechnologiesInc.DonChambersCablesToGoTakashiMatsuiEIZONANAOGrahamLoveridgeGenesisMicrochipJimWebbGenesisMicrochipSusanLuerichIBMIanMillerSamsungSteveHasegawaSonyWorkgroupLeaderJackHosekNEC-MitsubishiDocumentEditorAlaind’HautecourtViewSonicVESAVideoTimingBlockExtension(VTB-EXT)StandardReleaseACopyright1994-2003VideoElectronicsStandardsAssociationPage4of32TableofContentsREVISIONHISTORY......................................................................................................31.OVERVIEW............................................................................................................51.1SUMMARY.................................................................................................................51.2BACKGROUND...........................................................................................................51.3STANDARDOBJECTIVES..............................................................................................51.4REFERENCEDOCUMENTS............................................................................................62.VIDEOTIMINGBLOCKEXTENSION(VTB-EXT)DATASTRUCTUREVER.1...72.1VTB-EXTDATASTRUCTUREFORMATOVERVIEW.......................................................82.2TAGLABEL&VERSIONNUMBER:2BYTES–ADDRESS/OFFSET00HTO01H.................92.3VTB-EXTDATASTRUCTURELAYOUT:3BYTES–ADDRESS/OFFSET02HTO04H..........92.4DETAILEDTIMINGSECTION:108BYTES(MAXIMUM)...................................................112.5COORDINATEDVIDEOTIMING(CVT)DESCRIPTORS–120BYTES(MAXIMUM)..............142.6STANDARDTIMINGDESCRIPTORS–122BYTES(MAXIMUM)........................................162.7UNUSEDBYTES......................................................................