SD卡协议第一部分

ChrontelDownloadedbyRogerYuChrontelon06/18/2008SDSpecificationsPart1PhysicalLayerSpecificationVersion2.00May9,2006SDGroupMatsushitaElectricIndustrialCo.,Ltd.(Panasonic)SanDiskCorporationToshibaCorporationTechnicalCommitteeSDCardAssociationChrontelDownloadedbyRogerYuChrontelon06/18/2008©Copyright2001-2006SDGroup(Panasonic,SanDisk,Toshiba)andSDCardAssociationPhysicalLayerSpecificationVersion2.00ConfidentialiRevisionHistoryDateVersionChangescomparedtopreviousissueMarch22,20001.0Baseversion(Draftonly)April15,20011.01InitialreleaseversionOctober15,20041.10-Version1.01+supplementarynotesVersion1.01e(March21,2004)-CMD6(SwitchFunctioncommand)isspecifiedandCMD34-37,50and57arereservedfornewcommandsystem.-High-Speedmodeisspecified.(Upto25MB/secRead/Writerate)-eCommercecommandsetandVendorSpecificcommandsetarespecifiedMay9,20062.00-Version1.10+supplementarynotesVersion1.00.-HighCapacitySDMemoryCardisspecified.(Uptoandincluding32GB)Totheextentthisproposedspecification,whichisbeingsubmittedforreviewundertheIPPolicy,implements,incorporatesbyreferenceorreferstoanyportionofversions1.0or1.01oftheSDSpecifications(includingParts1through4),adoptionoftheproposedspecificationshallrequireMembersutilizingtheadoptedspecificationtoobtaintheappropriatelicensesfromtheSD-3C,LLC,asrequiredfortheutilizationofthoseportion(s)ofversions1.0or1.01oftheSDSpecifications.Forexample,implementationoftheSDSpecificationsinahostdeviceunderversions1.0or1.01andundertheadoptedspecificationrequirestheexecutionofaSDHostAncillaryLicenseAgreementwiththeSD-3C,LLC;andimplementationoftheSDSpecificationsunderversions1.0or1.01andundertheproposedspecificationinaSDCardcontaininganymemorystoragecapability(otherthanforstorageofexecutablecodeforacontrollerormicroprocessorwithintheSDCard)requirestheexecutionofaSDMemoryCardLicenseAgreementwiththeSD-3C,LLC.ChrontelDownloadedbyRogerYuChrontelon06/18/2008©Copyright2001-2006SDGroup(Panasonic,SanDisk,Toshiba)andSDCardAssociationPhysicalLayerSpecificationVersion2.00ConfidentialiiConditionsforpublicationPublisher:SDCardAssociation2400CaminoRamon,Suite375SanRamon,CA94583USATelephone:[phone],Fax:[phone]E-mail:[e-mail]:TheSDGroupMatsushitaElectricIndustrialCo.,Ltd.(Panasonic)SanDiskCorporation(SanDisk)ToshibaCorporation(Toshiba)TheSDCardAssociationNotes:Thecopyrightofthepreviousversions(Version1.00and1.01)andallcorrectionsornon-materialchangestheretoareownedbySDGroup.Thecopyrightofmaterialchangestothepreviousversions(Version1.01)areownedbySDCardAssociation.Confidentiality:ThecontentsofthisdocumentaredeemedconfidentialinformationoftheSD-3CLLCand/ortheSDCardAssociation(theDisclosers).Assuch,thecontentsandyourrighttousethecontentsaresubjecttotheconfidentialityobligationsstatedinthewrittenagreementyouenteredintowiththeDiscloserswhichentitledyoutoreceivethisdocument,suchasaNon-DisclosureAgreement,theLicenseAgreementforSDAMemoryCardSpecifications(alsoknownasLAMS),theSDHost/AncillaryProductLicenseAgreement(alsoknownasHALA)ortheIPPolicy.Disclaimers:TheinformationcontainedhereinispresentedonlyasastandardspecificationforSDCardandSDHost/Ancillaryproducts.NoresponsibilityisassumedbySDCardAssociationforanydamages,anyinfringementsofpatentsorotherrightofthethirdparties,whichmayresultfromitsuse.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorrightsofSDGroupandSDCardAssociationorothers.ChrontelDownloadedbyRogerYuChrontelon06/18/2008©Copyright2001-2006SDGroup(Panasonic,SanDisk,Toshiba)andSDCardAssociationPhysicalLayerSpecificationVersion2.00ConfidentialiiiConventionsUsedinThisDocumentNamingConventions•SometermsarecapitalizedtodistinguishtheirdefinitionfromtheircommonEnglishmeaning.WordsnotcapitalizedhavetheircommonEnglishmeaning.NumbersandNumberBases•Hexadecimalnumbersarewrittenwithalowercase“h”suffix,e.g.,FFFFhand80h.•Binarynumbersarewrittenwithalowercase“b”suffix(e.g.,10b).•Binarynumberslargerthanfourdigitsarewrittenwithaspacedividingeachgroupoffourdigits,asin100001010010b.•Allothernumbersaredecimal.KeyWords•May:Indicatesflexibilityofchoicewithnoimpliedrecommendationorrequirement.•Shall:Indicatesamandatoryrequirement.Designersshallimplementsuchmandatoryrequirementstoensureinterchangeabilityandtoclaimconformancewiththespecification.•Should:Indicatesastrongrecommendationbutnotamandatoryrequirement.Designersshouldgivestrongconsiderationtosuchrecommendations,butthereisstillachoiceinimplementation.ApplicationNotesSomesectionsofthisdocumentprovideguidancetothehostimplementersasfollows:ApplicationNote:Thisisanexampleofanapplicationnote.ChrontelDownloadedbyRogerYuChrontelon06/18/2008©Copyright2001-2006SDGroup(Panasonic,SanDisk,Toshiba)andSDCardAssociationPhysicalLayerSpecificationVersion2.00ConfidentialivTableofContents1.GeneralDescription............................................................................................................12.SystemFeatures.................................................................................................................33.SDMemoryCardSystemConcept....