VESA-Coordinated Video Timings Standard-Version 1.

视听研究所主页：论坛：所有资料均收集于各网站。若您认为有关资料不适合公开，请联系[e-mail]我们会第一时间删除。感谢各位网友的无私奉献和支持！加密时间：2008-2-1VESACoordinatedVideoTimingsStandardVersion1.1©Copyright2003VideoElectronicsStandardsAssociationPage1of21VESA®CVTStandardVideoElectronicsStandardsAssociation860HillviewCourt,Suite150Phone:[phone]Milpitas,CA95035Fax:[phone]CoordinatedVideoTimingsStandardVersion1.1September10,2003PurposeTheVESACoordinatedVideoTimings(CVT)isamethodforgeneratingaconsistentandcoordinatedsetofstandardformats,displayrefreshrates,andtimingspecificationsforcomputerdisplayproducts,boththoseemployingCRTsandthoseusingotherdisplaytechnologies.TheintentionoftheCVTspecificationistogivebothsourceanddisplaymanufacturersacommonsetoftoolstoenablenewtimingstobedevelopedinaconsistentmannerthatensuregreatercompatibility.SummaryTheCVTStandarddefinesrulesandmethodsbywhichnewandexistingformatscanbedefined.BasedprimarilyontheVESAGTFStandard,CVTdefinesrestrictionstothepixelclockmodularity,refreshrateandaspectratio.Italsospecifiesanewequation-basedmethodfordevelopingReducedBlankingtimings,designedforusewithnon-CRTdisplaysthatcanacceptReducedHorizontalBlankingtimes.VESACoordinatedVideoTimingsStandardVersion1.1©Copyright2003VideoElectronicsStandardsAssociationPage2of21PrefaceIntellectualPropertyCopyright©2003VideoElectronicsStandardsAssociation.Allrightsreserved.Whileeveryprecautionhasbeentakeninthepreparationofthisstandard,theVideoElectronicsStandardsAssociationanditscontributorsassumenoresponsibilityforerrorsoromissions,andmakenowarranties,expressedorimplied,offunctionalityorsuitabilityforanypurpose.TrademarksAlltrademarksusedwithinthisdocumentarethepropertyoftheirrespectiveowners.VESA,DDC,EDID,andE-EDIDtrademarksoftheVideoElectronicsStandardAssociation.I2CisatrademarkownedbyPhilips.PatentsVESAproposalsandstandardsareadoptedbytheVideoElectronicsStandardsAssociationwithoutregardastowhethertheiradoptionmayinvolveanypatentsorarticles,materials,orprocesses.Suchadoptiondoesnotassumeanyliabilitytoanypatentowner,nordoesitassumeanyobligationwhatsoevertopartiesadoptingtheproposalsorstandardsdocuments.SupportforthisStandardClarificationsandapplicationnotestosupportthisstandardmaybewritten.Toobtainthelateststandardandanysupportdocumentation,contactVESA.Ifyouhaveaproduct,whichincorporatesCVT,youshouldaskthecompanythatmanufacturedyourproductforassistance.Ifyouareamanufacturer,VESAcanassistyouwithanyclarificationyoumayrequire.AllcommentsorreportederrorsshouldbesubmittedinwritingtoVESAusingoneofthefollowingmethods.•Fax:[phone],directthisnotetoTechnicalSupportatVESA•e-mail:[e-mail]•mail:TechnicalSupportVideoElectronicsStandardsAssociation860HillviewCourt,Suite150Milpitas,CA95035VESACoordinatedVideoTimingsStandardVersion1.1©Copyright2003VideoElectronicsStandardsAssociationPage3of21RevisionHistoryVersion1.1September10,2003Section3.4.1,points6&7revisedtocorrectmistake(minimumVerticalSyncandVerticalBackPorchtimeis550usnot500us).RoundingerrorsinVESAStandardNamescorrectedinTable3and7.MissingConstantsandVariablesaddedtoTable9and10.Version1March26,2003InitialreleaseofthestandardAcknowledgementsThisdocumentwouldnothavebeenpossiblewithouttheeffortsoftheVESADisplayCommittee.Inparticular,thefollowingindividualsandtheircompaniescontributedsignificanttimeandknowledgetothisversionoftheCVTStandard.DavidGlenATITechnologies,Inc.JoryOlsonInFocusJoeGoodartDellComputerCorp.HiroshiYamashitaInternationalDisplayTech.ShiroMakinoEizoNanaoCorporationKeitaKitahamaNVIDIACorp.GrahamLoveridge,WorkgroupLeaderGenesisMicrochipNozomuKikuchiPioneerCorporationSteveHasegawaSonyJimWebbGenesisMicrochipJoeMiseliSunMicrosystemsYouichiIgarashiHitachiLtd.DonChambersTotalTechnologiesLtd.VESACoordinatedVideoTimingsStandardVersion1.1©Copyright2003VideoElectronicsStandardsAssociationPage4of21TableofContentsREVISIONHISTORY................................................................................................................................................31.OVERVIEW........................................................................................................................................................51.1SUMMARY..........................................................................................................................................................51.2BACKGROUND....................................................................................................................................................51.3STANDARDOBJECTIVES.....................................................................................................................................51.4REFERENCEDOCUMENTS...................................................................................................................................62.FORMAT&TIMINGSELECTION................................................................................................................72.1FORMATSELECTION.......................................................