ufs

JEDEC

STANDARD

UniversalFlashStorage(UFS)

CardExtension

Version1.0

JESD220-2

MARCH2016

JEDECSOLIDSTATETECHNOLOGYASSOCIATION

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JEDECStandardNo.220-2

-i-

UNIVERSALFLASHSTORAGE(UFS)CARDEXTENSION,VERSION1.0

Contents

Page

Forewordi

Introductioni

1Scope1

2NormativeReference1

3Terms,anddefinitions1

3.1Acronyms1

3.2Termsanddefinitions2

3.3Keywords2

3.4Abbreviations3

3.5Conventions3

4Introduction4

4.1Overview4

4.2FunctionalFeatures4

5UFSCardSystemArchitecture5

5.1Overview5

5.2UFSCardSignals5

6UFSCardDesign6

7FeaturecomParisonofembeddedUFSan环保意识 dUFScard9

8UFSCardinitialization10

8.1InitializationSequence11

9PowerConsumption12

AnnexA(informative)HostGuidelineforUFSCardDetection13

Figures

Figure5.1—UFSCardBlockDiagram5

Figure6.1—UFSCardTopView6

Figure6.2—UFSCardBottomView7

Figure6.3—UFSCardSideView8

Figure8.1—UFSCardInitialization10

Figure8.2—UFSCardInitializationSequence11

Tables

Table5.1—SignalNameandDefinitions5

Table7.1—ComparisonofembeddedUFSandUFSCard9

JEDECStandardNo.220-2

-ii-

UNIVERSALFLASHSTORAGE(UFS)CARDEXTENSION,VERSION1.0

Foreword

poofthisstandardistodefineaUFScard

cumentwillbeextensionoftheUFSStandard,JESD220.

Introduction

TheUFSdevice(embedded/removable)

designedtocoverawideareaofapplicationsassmartphones,cameras,organizers,PDAs,digital

recorders,MP3players,internettablets,electronictoys,etc.

JEDECStandardNo.220-2

Page1

UNIVERSALFLASHSTORAGE(UFS)CARDEXTENSION,VERSION1.0

(FromJEDECBoardBallotJCB-16-12,formulatedunderthecognizanceoftheJC-64.1SubcommitteeonElectrical

SpecificationsandCommandProtocols(Item133.69).)

1Scope

Thisstandardspecifies小王子阅读笔记 thecharacteristicsoftheUFScardelectricalinterfaceandthememorydevice.

Thisdocumentdefinestheadded/

othercommonfeaturesJESD220,UFS,Version2.0,willbereferenced.

2NormativeReference

Thefollowingnormativedocumentscontainprovisionsthat,throughreferenceinthistext,constitute

edreferences,subquentamendmentsto,orrevisionsof,anyofthe

r,partiestoagreementsbadonthisstandardareencouragedto

investigatethepossibil

undatedreferences,thelatesteditionofthenormativedocumentreferredtoapplies.

[MIPI-M-PHY],MIPIAllianceSpecificationforM-PHYSMSpecification,Version3.0

[MIPI-UniPro],MIPIAllianceSpecificationforUnifiedProtocol(UniProSM),Version1.6

[MIPI-DDB],MIPIAllianceSpecificationforDeviceDescriptorBlock(DDB),Version

[SAM],SCSIArchitectureModel–5(SAM–5),Revision05,19May2010

[SPC],T10Specification:SCSIPrimaryCommands–4(SPC-4),Revision27,11October2010

[SBC],T10Specification:SCSIBlockCommands–3(SBC–3),Revision24,05August2010

[UFS],JEDECJESD220B,UniversalFlashStorage(UFS),Version2.0

[UFS],JEDECJEP95,MO-320,UFSCardFormFactor

3Terms,anddefinitions

Forthepurpoofthisstandard,thetermsanddefinitionsgiveninthedocumentsincludedinction2

“NormativeReference”andthefollowingapply.

3.1Acronyms

HCIHostControllerInterface

UFSUniversalFlashStorage

MIPIMobileIndustryProcessorInterface

PWMPulWidthModulation

RPMBR雄壮的近义词 eplayProtectedMemoryBlock

SBCSCSIBlockCommands

SPCSCSIPrimaryCommands

LUNLogicalUnitNumber

NANotapplicable

KBKilobyte

eUFSEmbeddedUniversalFlashStorage

JEDECStandardNo.220-2

Page2

3Terms,anddefinitions(cont’d)

3.2Termsanddefinitions

Byte:An8‐bitdatavaluewithmostsignificantbitlabeledasbit7andleastsignificantbitasbit0.

Device:AnaddressabledeviceontheUFSbususuallyatargetthatcontainsatleastoneLUN

Host:AnaddressabledeviceontheUFSbuswhichisusuallythemainCPUthathoststheUFSbus

3.3Keywords

Severalkeywordsareudtodifferentiatelevelsofrequirementsandoptions,asfollow:

Can:Akeywordudforstatementsofpossibilityandcapability,whethermaterial,physical,orcausal

(canequalsisableto).

Expected:Akeywordudtodescribethebehaviorofthehardwareorsoftwareinthedesignmodels

ardwareandsoftwaredesignmodelsmayalsobeimplemented.

Ignored:Akeywordthatdescribesbits,bytes,quadlets,orfieldswhovaluesarenotcheckedbythe

recipient.

Mandatory:Akeywordthatindicatesitemsrequiredtobeimplementedasdefinedbythisstandard.

May:Akeywordthatindicatesacourofactionpermissiblewithinthelimitsofthestandard(may

equalsispermitted).

Must:Theuofthewordmustisdeprecatedandshallnotbeudwhenstatingmandatory

requirements;mustisudonlytodescribeunavoidablesituations.

Optional:Akeywordthatdescribesfeatureswhicharenotrequiredtobeimplementedbythisstandard.

However,ifanyoptionalfeaturedefinedbythestandardisimplemented,itshallbeimplementedas

definedbythestandard.

Rerved:Akeywordudtodescribeobjects—bits,bytes,andfields—orthecodevaluesassignedto

theobjectsincaswhereeithertheobjectorthecodevalueistasideforfuturestandardization.

Usageandinterved

objectshallbezeroedor,upondevelopmentofafuturestandard,ttoavaluespecifiedbysucha

ipientofadefinedobject

shallcheckitsvalueandrejectrervedcodevalues.

Shall:Akeywordthatindicatesamandatoryrequirementstrictlytobefollowedinordertoconformto

thestandardandfromwhichnodeviationispermitted(shallequalsisrequiredto).Designersarerequired

toimplementallsuchmandatoryrequirementstoassureinteroperabilitywithotherproductsconforming

tothisstandard.

Should:Akeywordudtoindicatethatamongveralpossibilitiesoneisrecommendedasparticularly

suitable,withoutmentioningorexcludingothers;orthatacertaincourofactionispreferredbutnot

necessarilyrequired;orthat(inthenegativeform)acertaincourofactionisdeprecatedbutnot

prohibited(shouldequalsisrecommendedthat).

Will:Theuofthewordwillisdeprecatedandshallnotbeudwhenstatingmandatoryrequirements;

willisonlyudinstatementsoffact.

JEDECStandardNo.220-2

Page3

3Terms,anddefinitions(cont’d)

3.4Abbreviations

etc.-Andsoforth(Latin:etcetera)

3.5Conventions

UFSspecificationfollowssomeconventionsudinSCSIdocumentssinceitadoptsveralSCSI

standards.

AbinarynumberisreprentedinthisstandardbyanyquenceofdigitsconsistingofonlytheWestern-

,0101b).Spacesmaybeincluded

inbinaryn,001011010b).

Ahexadecimalnumberisreprentedinthisstandardbyanyquenceofdigitsconsistingofonlythe

Western-Arabicnumerals0through9and/ortheupper-caEnglishlettersAthroughFimmediately

,FA23h).Spacesmaybeincludedinhexadecimalnumberreprentations

,BFD8CFA23h).

Adecimalnumberisreprentedinthisstandardbyanyquenceofdigitsconsistingofonlythe

Western-Arabi,

25).

Arangeofnumericvaluesisreprentedinthisstandardintheform"atoz",whereaisthefirstvalue

includedintherange,allvaluesbetweenaandzareincludedintherange,andzisthelastvalueincluded

,thereprentation"0hto3h"includesthevalues0h,1h,2h,and3h).

Whenthevalueofthebitorfieldisnotrelevant,xorxxappearsinplaceofaspecificvalue.

,fMyFlag).

ThefirstletterofthenameofaparameterincludedaDescriptororthefirstletterofthenameofan

Attributeis:

,bMyParameter),

,wMyParameter),

,dMyParameter),

,qMyParameter).

JEDECStandardNo.220-2

Page4

4Introduction

4.1Overview

TheJESD220standardalreadydefinedsomefeaturesforUFScard(removable).TheUFScardus

sameprotocolambeddedUFSdevice,butithasfewcardspecificrequirementslikepower

consumption.

4.2FunctionalFeatures

nclude:

-Gear2(optional)andHS-Gear3

SupportsMultiplepartitions(LUNs)withpartitionManagement

SupportsMultipleUrDataPartitionwithEnhancedUrDataAreaoptions

Reliablewriteoperation

Backgroundoperations

Secureoperations,PurgeandEratoenhancedatacurity

WriteProtectionoptions,includingPermanentandPower-OnWriteProtection

Taskmanagementoperations

Powermanagementoperations

JEDECStandardNo.220-2

Page5

5UFSCardSystemArchitecture

5.1Overview

illnotbeanychangeinthe

overallsystemarchitectureofremovableUFScardcomparedtoembeddedcard.

5.2UFSCardSignals

Figure5.1showstheconceptualdrawingofUFScard.

Figure5.1—UFSCardBlockDiagram

Table5.1—SignalNameandDefinitions

NameTypeDescription

VCCSupplySupplyvoltageforthememorydevices

VCCQ2SupplySupplyvoltageudtypicallyforthePHYinterfaceandthememory

controllerandanyotherinternallowvoltageblock

VSSSupplyGround

C/DGNDCardDetectionPin

REF_tactive,thissignalshouldbepull-down

ordrivenlowbythehostSoC.

DifferentialinputsignalsintoUFSdevicefromthehost

DIN_T

DIN_C

_Tisthepositivenodeofthedifferential

signal.

DifferentialoutputsignalsfromtheUFSdevicetothehost

DOUT_T

DOUT_C

_Tisthepositivenodeofthedifferential

signal.

C/D

JEDECStandardNo.220-2

Page6

6UFSCardDesign

TheUFScardwillfollowthesharkdesignandasimplifiedpictorialreprentationisshowninFigure6.1.

RefertoJEP95,MO-320,formoredetailedmechanicaldimensionsofFigure6.1,Figure6.2andFigure

6.3.

Figure6.1—UFSCardTopView

JEDECStandardNo.220-2

Page7

6UFSCardDesign(cont’d)

Figure6.2—UFSCardBottomView

Pin1

JEDECStandardNo.220-2

Page8

6UFSCardDesign(cont’d)

Figure6.3—UFSCardSideView

JEDECStandardNo.220-2

Page9

7FeaturecomparisonofembeddedUFSandUFScard

ywillbeudindifferent

environment,FScardshallhavedifferencesinsupportingfewfeatures

7.1showsthedifferencebetweenembeddedUFSandUFScard.

Table7.1—ComparisonofembeddedUFSandUFSCard

CategoryItemeUFS2.0UFScardv1.0

General

Supported

PWMGears

G1,G2,G3,G4(Mandatory)

G5,G6,G7(optional)

G1Only

(PWMshallbeabletobe

operatedwithoutreferenceclock)

SupportedHSGearsG1,G2,G3(optional)HS-Gear3,HS-Gear2(optional)

Interface

PowerSuppliesVCCQ,VCCQ2,VCCVCCQ2(1.8V),VCC(3.3V)

LanesUpto2Upto1

HWRetSupportedNotSupported

ReferenceClock19.2,26,38.4,52MHZ.

Default26MHZ

26MHz(Default),

19.2MHz

Functional

bRefClkFreqPersistent(Default26MHz)Volatile(Default26MHz)

bMaxNumOfRTTPersistent(Default2)Volatile(Default2)

bMaxDataInSizePersistent(Min4KB)Volatile(Min4KB)

bMaxDataOutSizePersistent(Min4KB)Volatile(Min4KB)

bActiveICCLevelPersistentVolatile

BootFeatureSupportedNotsupported

bOutOfOrderDataEnWriteonce(Default0)Volatile(Default0)

ortforunnecessarygearsshallbe

removedandUFScardshallsupportsonlyPWM-Gear1,HS-Gear2(optional),rly

theUFScardshallsupportupto1lanecomparedtoembeddedUFSsupports2lanes.

VCCQ:cardvendorscan

uembedLDOtogetthelowervoltagewhichisaligned财务中心 totheirlowvoltagecorefrom3.3Vor1.8V

apowersupply,3.3Vand1.8VaremandatoryconsideringtheNANDcontroller,I/O

pin(1.2V)isnotsupportedin

UFScard.

HWRet:IncaofembeddedUFSthechipcannotbedetachedfromthesystemPCB,sotheHW

FScard,cardremovalispossible,thereforetheHWretpincanbeavoided.

TheminimizingofUFScardpincountcanreducethedevelopmentandtestingcost.

Attributes:InembeddedUFSthebRefClkFreq,bMaxNumOfRTT,andbMaxDataInSize,

bMaxDataOutSize,

embeddedUFSchipcan’tberemovedfromthehost,makingtheattributesvalueaspersistentavoidsre-

aofUFScard,itcanbeinrtedintodifferenthostwhichmay

Scardtheattributesvalueshallretto

defaultvalueaftereveryret.

JEDECStandardNo.220-2

Page10

8UFSCardinitialization

hisisaremovabledevice,

VCC(3.3V)andVCCQ2(1.8V)maybeprovidedaftertheUFScardisfullyinrtedintothecardslot.

TheC/Dpinmaybeudtosupportcardinrtiondetection(refertoAnnexA).

Figure8.1—UFSCardInitialization

CardInrtion

UFSLinkStart-up

Process

Wait

NotInrted

SupplyVCCQ2(1.8V),

VCC(3.3V)

DetectCard

inrtionin

Voltage

Inrted

JEDECStandardNo.220-2

Page11

8.1InitializationSequence

Oncetheretisdone,thehostwillttheattributestomakethecardcompatiblewiththeparticularhost.

Figure8.2—UFSCar桓阶 dInitializationSequence

TheUFScardinitializationissameasofembeddedUFS,exceptthebRefClkFreq,bMaxNumOfRTT,

bMaxDataInSize,b电脑怎么修改密码 MaxDataOutSize,bOutOfOrderDataEnandbActiveICClevelattributesvaluewillbe

cetheUFS

cardcanbeinrtedintodifferenthost,t

hastotappropriatevaluebeforechangingthemodetohighspeedmode.

JEDECStandardNo.220-2

Page12

9PowerConsumption

orepowerlevelwhichanyUFScardcanwork

ideringtheremovablecard

industry,cardshall

consumemaximum300mAfromVCC(3.3V)andmaximum300mAfromVCCQ2(1.8V).

JEDECStandardNo.220-2

Page13

AnnexA(informative)HostGuidelineforUFSCardDetection

Thecarddetection(C/D)pinmaybeutilizedtodetectcardinrtion,byaddingpull-upresistortothe

C/Dpininthehost-sideC/eUFScardisnotinrted,host-sideC/Dpinshowsnon-zero

eUFScardisinrted,host-sideC/DpinshowszerovoltagevaluebecauC/D

pinofdeviceistiedtoground.

FigureA.1—HostguidelineforUFSCardDetection

C/D

UFSCard

UFSHost

Detectionvoltage

supply

JEDECStandardNo.220-2

Page14

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