MIPI-DSI-Essential(MIPI协议详细介绍)演示教学课件

MIPIDSIEssentialMIPIDSIEssentialTableofContentsMIPIDSIOverviewPHYLayerD-PHYArchitectureGlobalOperationLaneManagementLayerDSIProtocolLayer2TableofContentsMIPIDSIOverMIPIDSIOverviewSerialInterfaceLowPinCountReducedPowerConsumption2TypesofDataSignalingHighSpeedDataTransmission-500Mbps/Lane,differentialsignalingLowPowerDataTransmission-10Mbps,singleendedsignaling,lane0onlyLane-Scalable,upto4datalanesPacketBasedDataTransmissionDSIProtocolhasECC,CRCcapability-robustdatatransmissionProtocolSupportMultipledisplays(upto4)SupportAllLegacyParallelInterfaceFunctionalityMIPIDSICommandMode->MIPIDBIInterface(I-80Interface)MIPIDSIVideoMode->MIPIDPIInterface(RGBInterface)3MIPIDSIOverviewSerialInterfMIPIDSIInterfacePhysicalArchitecture■1ClockLane,unidirectional■1to4DataLanes■Lane0isbidirectionalforLPdataoutputtransmissionofthedriverIC4MIPIDSIInterfacePhysicalArMIPIDSIFunctionalLayersTransmitterSide8-bits8-bitsLowLevelProtocolDataControlDataControlAdd(TX)/Extract(RX)lowlevelprotocol,synchronization,ECC,CRCpacketheadersandfooters.LowLevelProtocolDataControlDataControlN*8-bitsTX:Distributedatato1,2,3or4lanesRX:Assemblydatafrom1,2,3or4toonebytestream8-bits8-bitsLaneManagementLayerLaneManagementLayerReceiverSidePHYLayerData3ControlPHYLayerControlPixeltoBytePackingFormatsDataControlPixelControlPack/UnpackPixelsorCommandsfrom/toByteStreamBytetoPixelUnpackingFormatsDataControlPixelControlApplicationPixelControlApplicationPixelControlEncodeandInterpretatData/Commands16-,18-or24-bitPixelsData2Data1Data0N*8-bitsData1Data3Data3Data0HighSpeedUnidirectionalClockLane0-HighSpeedbidirectionalDataLane1-HighSpeedUnidirectionalDataLane2-HighSpeedUnidirectionalDataLane3-HighSpeedUnidirectionalDataPhysicalTransmission/ReceptionSerializer/DeserializerByteClockGeneration/Recovery(DDR)perMIPID-PHYSpec5MIPIDSIFunctionalLayersTranVideoModeDisplayDisplayDriverHostProcessorDisplayPanelLCDDisplayBusInterfaceBusInterfaceColorFrameBufferDisplayRefreshTimingControlUpdateFrameBuffer6VideoModeDisplayDisplayHostCommandModeDisplayHostProcessorDisplayPanelLCDDisplayBusInterfaceColorFrameBufferImageUpdateDataCommands&ImageUpdateDataBusInterfaceDisplayController7CommandModeDisplayHostDisplaPHYLayerD-PHYArchitecturePHYLayerD-PHYArchitecturePHYLaneConfigurationMinimumConfigurationAtleast1ClockLane,1DataLaneReverse-directiontrafficuseslane0onlyLane1,2,3(ifpresent)areunidirectionalLanenumberfixedatdesign/manufacture(Modulelevel)Nodynamiclaneconfigurationbyhostprocessor.9PHYLaneConfigurationMinimumD-PHYLaneModule(1/2)TransmissiondataUnitOnebyteLaneModulemaycontainHS-TX,HS-RX,orbothIfLPmodeisusedatcommandmodeconfiguration,bothhostandperipheralmustincludeLPRxandLPTxAlsoCDneededifbi-directionalinuse

TheLP-CDshallcheckforcontentionatleastoncebeforedrivinganewstateonthelineMasterandaSlaveconcept10D-PHYLaneModule(1/2)TransmiD-PHYLaneModule(2/2)LowpowertransmitterHighspeedreceiverLowpowerreceiverContention(=“collision”)detectionHighspeedtransmitter11D-PHYLaneModule(2/2)LowpowLeastPHYLaneConfiguration-DetailedViewDatalane0CLKlane*Bi-directionalbutnotHSreverse*LPforbi-directional*uni-directional*LPforminimumtransitioncontrol12LeastPHYLaneConfiguration-D-PHYSignalLevel2TypesofSignalLevelHSDTLPDTLPVOH-typ1.2V,1.1V~1.3VHSdiff-typ200mv,140mv~270mvHScomm-typ200mv,150mv~250mvLPVOH-typ0V,-50mV~50mVLPVIL:550mVLPVIH-typ1.2v0.88V~1.35V13D-PHYSignalLevel2TypesofSHSMode-TransmitterReceiverStructureHSDataTransmissionWhileHSDTisactive,TerminationRisenabledR-term(ZID):100OhmTransmittersideReceiversidePCB,Conn,FPCB0V400mV300mV100mV14HSMode-TransmitterReceiverHSMode-SignalingDetailedView300mv100mv200mv100mv200mvVdiff=|VOD|Vdiff200mV,Vcm200mVTypCondition15HSMode-SignalingDetailedVHSMode-ClockTransmissionHSClockDDRClockStructure,1ClkPeriod:2*UIClockBurstalwayscontainsanevennumberoftransitionClockcanalsorunwhileD0isinLPmode(especiallyVideomode)Ex)500MbpsFreq:250Mhz,1ClkPeriod:4ns,IU=2ns,16HSMode-ClockTransmissionHHSMode-ClocktoDataDatatoClockTimingDefinition90DegreePhaseShiftCLKtoDataTheFirstbitofDSIPacketmustbesentatarisingedgeofHSClkDataLaneClockLane17HSMode-ClocktoDataDatatoHSDTSignalinPracticeVCM=200mVnomVo+:typically~300mVVo-:typically~100mVVdiff(positive)18HSDTSignalinPracticeVCM=2LPSignalingDetailedViewTypically1.2VTLPX-min:50ns19LPSignalingDetailedViewTypiLPDTSignalinPractice2TLPXtypically1.2VDPDN20LPDTSignalinPractice2TLPXtyPHYLayerGlobalOperationPHYLayerGlobalOperationDataUnitOfD-PHYMinimumDataUnitis1ByteTransmitter-Bytestream->BitstreamReceiver-Bitstream->BytestreamHSLanecanbedifferential1or0LPLaneonD0canhavefourstate(LP+/-)LP00:"Bridge","Space"LP01:"HS-Rqst","Mark-0"LP10:"LP-Rqst","Mart-1"LP11:"Stop"22DataUnitOfD-PHYMinimumDataD-PHYOperationFlowDiagramLP-11(Stop)StateThestartstateofeveryoperation.MajorThreeTypeModesEscapeModeHSTBusTurnAroundPHYStateisdecidedbyLPstateHSDT:LP11->LP01->LP00->HSDT->LP-11LPDT:LP11->LP10->LP00->EscapeMode

->LP11InCaseofClockLaneHSTisSupportedforClockSupply23D-PHYOperationFlowDiagramLPEscapeModeOperationEscapeModeEntry,EscapeModeLeaveEscapeModeCommandsEscapeCommandTypeEntryCommandPattern(Firstbit->LastBitTransmittedD1,D2,D3D0Low-PowerDataTransmissionMode11100001(0x87,LSBFirst)-oUltra-LowPowerModeMode00011110(0x78)ooUndefined-1Mode10011111--Undefined-2Mode11011110--Reset-TriggerTrigger01100010(0x46)-oTearingEffectTrigger01011101(0xBA)-oAcknowledgeTrigger00100001(0x84)-oUnknown-5Trigger10100000--24EscapeModeOperationEscapeMoEscapeModeOperation-LPDTLowPowerDataTransmission25EscapeModeOperation-LPDTLEscapeModeOperation-ResetTriggerUltraLowPowerState26EscapeModeOperation-ResetEscapeModeinPractice-LPDTEMELP11-LP10-LP00-LP01-LP00EscapeModeCommandLPDT11100001(0x87)Data1-10011100(0x39)(PacketHeader)DPDN27EscapeModeinPractice-LPDTHSModeOperationHighSpeedDataTransmissionRequestLP11->LP01->LP00Clock,DataLane:SameEntryHighSpeedClockLaneisstartedbeforeDataTransmission28HSModeOperationHighSpeedDaHSModeOperation-DataLaneEntryLowPowerModetoHighSpeedModeLP11-LP01-LP00-SOT-HSDTSynchronizationCode:00011101DataTransmission29HSModeOperation-DataLaneHSModeOperation-DataLaneLeaveLowPowerModetoHighSpeedModeHSDT->EOT->LP1130HSModeOperation-DataLaneHSModeOperationinPractice-LPDTtoHSDTLP01LP00LP11LPTransmitterDrivingHSTransmitterDrivingHSClockR-termOnDPDN31HSModeOperationinPracticeHSModeOperationinPractice-SOTSOT00011101DATA0ClkData32HSModeOperationinPracticeBusTurnAroundHandoverBusPossessionHosttoclient,clienttohostWhenhostrequestdatafromclientandwhenhostreadstatusofclientClientmustsendBTAafterclient'sdatatransmissionTE-signalingSequence(ex,ReadRequesttoClient)HostSend"ReadRequest"toClient->HostsendsBTA->ClientGetBus->HostReleasesBus->Clientsendsdata->ClientsendsBTA->HostGetBus

LP11-LP10-LP00-LP10-LP0033BusTurnAroundHandoverBusPoBusTurnAroundinPracticeBTAClientLPDTHostDrivingClientDrivingDPDN34BusTurnAroundinPracticeBTALaneManagementLayerLaneManagementLayerMultiLaneDistributionandMergingDistributorFunction(transmit)MergerFunction(receive)36MultiLaneDistributionandMeDataTransmissionExample-2Lane37DataTransmissionExample-2DataTransmissionExample-3Lane38DataTransmissionExample-3DSIProtocolLayerDSIProtocolLayerPacket-basedProtocolDataFlowImagedata,Signalevents,Commands->ProtocolLayer->Packets->Physicallayer->PacketReceive->InterpretPackettoImagedata,SignalEvent,CommandsSignalEvent:V-sync,H-sync.Commands:DCSCommandsManypacketscanbetransferredinatransmissionPacketConcatenationPacketTypesShortPacket-4byteincludeECCLongPacket-upto65kbytes40Packet-basedProtocolDataFlowShortPacketFormatECCGeneration-DI-Data0-Data1ECC41ShortPacketFormatECC-DIECC4LongPacketFormatCRCCalculation-DataCRCECCGeneration-DI-WordCountECC42LongPacketFormatCRC-DataCREndianPolicyLongPacketCaseLSByteFirst,MSByteLast43EndianPolicyLongPacketCase4VirtualChannelUpto4peripheralspossiblewithtaggedcommandorblocksofdata,usingtheVirtualChannelIDFieldDSIhubisneeded,NotpossibletoconnectmanydisplaytosamebusDSIHubHostProcessorMainDisplayPanelLCDDisplayBusInterfaceBusInterfaceDSIOut1Out2InterfaceLCDDisplayFrameBufferSub-Display44VirtualChannelUpto4peripheMultiplePacketsperTransmission-WithEoTp-WithoutEoTp45MultiplePacketsperTransmissDataTypeOnlyVideoModeVideoModeCommandModeMotorolaLegacyoperationforvideomodeProtocolSpecific46DataTypeOnlyVideoModeVideoDataTypeOnlyVideoModeVideoModeCommandModeProtocolSpecific47DataTypeOnlyVideoModeVideoPacketsforDCScommandsDCSShortWrite:writeasingledatabytetoaperipheral05h/15h(noparameters/oneparameter)IfBTAfollowsACKbydisplayorAwERDCSLongWrite/write_LUTCommand,DataType=111001(39h)UsedtosendlargerblocksofdatatoadisplaymoduleDIbyte,atwo-byteWC,anECCbyte,followedbytheDCSCommandByte,apayloadoflengthWCminusonebytes,andatwo-bytechecksumDCSReadRequest,NoParameters,DataType=000110(06h)usedtorequestdatafromadisplaymodule.IDbyte,aDCSReadcommand,abytesetto00handanECCbyte.BTAafterthecommand(immediatelyofsometimeafterbutbeforenextcommand)Displayresponse:shortorlongpacket48PacketsforDCScommandsDCSShPacketsforDSIProtocolSetMaximumReturnPacketSize,DataType=110111(37h)ThispreventsFIFOoverflowforReadpacketpayloadinprocessor,consideringthecasethatMemoryreadcommandcanretrieveanumerousbytesofdata.NullPacket(Long),DataType=001001(09h)Thispreventsthedatalane(s)goingbacktoLP-11,withlessoverheadtocontinueHSburst.Theminimumpacketsizeis6(4bytesPH+0bytepayload+2bytesCRCchecksum).EoTp,DataType=001000(08h)ShouldbeenabledwhenHSDTAnEoTphasafixedformatasfollowsDataType=DI[5:0]=0b001000VirtualChannel=DI[7:6]=0b00PayloadData[15:0]=0x0F0FECC[7:0]=0x0149PacketsforDSIProtocolSetMaPacketsforVideomodeSyncEvent:generatevideosyncsignalinternallyVSyncStart(0x01),VSyncEnd(0x11)HSyncStart(0x21),HSyncEnd(0x31)VideoStreams(Long)RGBVideoStreams50PacketsforVideomodeSyncEvenRGBPixelStream-16bit,24bit24-BitPixelDataType:0x3EWordCount:1HLinePixelLengthx316-BitPixelDataType:0x0EWordCount:1HLinePixelLengthx251RGBPixelStream-16bit,24biVideoStreaming-NonBurstOperation52VideoStreaming-NonBurstOpVideoStreaming-BurstOperation53VideoStreaming-BurstOperatReverseTransmissionsOccuronD0afterhosthasmadeBTADisplayisexpectedtoreplydataoratleastreplyACK ACKmeanseverything'sokResponseTypeTearingEffect(TEE)Acknowledge=ACKAcknowledgeandErrorReport=AwERResponsetoReadRequestBTAMusttakeplaceafterdisplayreplyGivebusbacktohost54ReverseTransmissionsOccuronReverseResponseDataType55ReverseResponseDataType55LPDTReverseExample11100001=LPDTDatatype05=shortwritenoparams00010001=0x11=SLPOUTECCBTADisplayEMEdphytable8:ACK=00100001(0x84)BTAbacktohost56LPDTReverseExample11100001=LErrorDetectandReportingErrorBitMapping57ErrorDetectandReportingErroQnA58QnA58MIPIDSIEssentialMIPIDSIEssentialTableofContentsMIPIDSIOverviewPHYLayerD-PHYArchitectureGlobalOperationLaneManagementLayerDSIProtocolLayer60TableofContentsMIPIDSIOverMIPIDSIOverviewSerialInterfaceLowPinCountReducedPowerConsumption2TypesofDataSignalingHighSpeedDataTransmission-500Mbps/Lane,differentialsignalingLowPowerDataTransmission-10Mbps,singleendedsignaling,lane0onlyLane-Scalable,upto4datalanesPacketBasedDataTransmissionDSIProtocolhasECC,CRCcapability-robustdatatransmissionProtocolSupportMultipledisplays(upto4)SupportAllLegacyParallelInterfaceFunctionalityMIPIDSICommandMode->MIPIDBIInterface(I-80Interface)MIPIDSIVideoMode->MIPIDPIInterface(RGBInterface)61MIPIDSIOverviewSerialInterfMIPIDSIInterfacePhysicalArchitecture■1ClockLane,unidirectional■1to4DataLanes■Lane0isbidirectionalforLPdataoutputtransmissionofthedriverIC62MIPIDSIInterfacePhysicalArMIPIDSIFunctionalLayersTransmitterSide8-bits8-bitsLowLevelProtocolDataControlDataControlAdd(TX)/Extract(RX)lowlevelprotocol,synchronization,ECC,CRCpacketheadersandfooters.LowLevelProtocolDataControlDataControlN*8-bitsTX:Distributedatato1,2,3or4lanesRX:Assemblydatafrom1,2,3or4toonebytestream8-bits8-bitsLaneManagementLayerLaneManagementLayerReceiverSidePHYLayerData3ControlPHYLayerControlPixeltoBytePackingFormatsDataControlPixelControlPack/UnpackPixelsorCommandsfrom/toByteStreamBytetoPixelUnpackingFormatsDataControlPixelControlApplicationPixelControlApplicationPixelControlEncodeandInterpretatData/Commands16-,18-or24-bitPixelsData2Data1Data0N*8-bitsData1Data3Data3Data0HighSpeedUnidirectionalClockLane0-HighSpeedbidirectionalDataLane1-HighSpeedUnidirectionalDataLane2-HighSpeedUnidirectionalDataLane3-HighSpeedUnidirectionalDataPhysicalTransmission/ReceptionSerializer/DeserializerByteClockGeneration/Recovery(DDR)perMIPID-PHYSpec63MIPIDSIFunctionalLayersTranVideoModeDisplayDisplayDriverHostProcessorDisplayPanelLCDDisplayBusInterfaceBusInterfaceColorFrameBufferDisplayRefreshTimingControlUpdateFrameBuffer64VideoModeDisplayDisplayHostCommandModeDisplayHostProcessorDisplayPanelLCDDisplayBusInterfaceColorFrameBufferImageUpdateDataCommands&ImageUpdateDataBusInterfaceDisplayController65CommandModeDisplayHostDisplaPHYLayerD-PHYArchitecturePHYLayerD-PHYArchitecturePHYLaneConfigurationMinimumConfigurationAtleast1ClockLane,1DataLaneReverse-directiontrafficuseslane0onlyLane1,2,3(ifpresent)areunidirectionalLanenumberfixedatdesign/manufacture(Modulelevel)Nodynamiclaneconfigurationbyhostprocessor.67PHYLaneConfigurationMinimumD-PHYLaneModule(1/2)TransmissiondataUnitOnebyteLaneModulemaycontainHS-TX,HS-RX,orbothIfLPmodeisusedatcommandmodeconfiguration,bothhostandperipheralmustincludeLPRxandLPTxAlsoCDneededifbi-directionalinuse

TheLP-CDshallcheckforcontentionatleastoncebeforedrivinganewstateonthelineMasterandaSlaveconcept68D-PHYLaneModule(1/2)TransmiD-PHYLaneModule(2/2)LowpowertransmitterHighspeedreceiverLowpowerreceiverContention(=“collision”)detectionHighspeedtransmitter69D-PHYLaneModule(2/2)LowpowLeastPHYLaneConfiguration-DetailedViewDatalane0CLKlane*Bi-directionalbutnotHSreverse*LPforbi-directional*uni-directional*LPforminimumtransitioncontrol70LeastPHYLaneConfiguration-D-PHYSignalLevel2TypesofSignalLevelHSDTLPDTLPVOH-typ1.2V,1.1V~1.3VHSdiff-typ200mv,140mv~270mvHScomm-typ200mv,150mv~250mvLPVOH-typ0V,-50mV~50mVLPVIL:550mVLPVIH-typ1.2v0.88V~1.35V71D-PHYSignalLevel2TypesofSHSMode-TransmitterReceiverStructureHSDataTransmissionWhileHSDTisactive,TerminationRisenabledR-term(ZID):100OhmTransmittersideReceiversidePCB,Conn,FPCB0V400mV300mV100mV72HSMode-TransmitterReceiverHSMode-SignalingDetailedView300mv100mv200mv100mv200mvVdiff=|VOD|Vdiff200mV,Vcm200mVTypCondition73HSMode-SignalingDetailedVHSMode-ClockTransmissionHSClockDDRClockStructure,1ClkPeriod:2*UIClockBurstalwayscontainsanevennumberoftransitionClockcanalsorunwhileD0isinLPmode(especiallyVideomode)Ex)500MbpsFreq:250Mhz,1ClkPeriod:4ns,IU=2ns,74HSMode-ClockTransmissionHHSMode-ClocktoDataDatatoClockTimingDefinition90DegreePhaseShiftCLKtoDataTheFirstbitofDSIPacketmustbesentatarisingedgeofHSClkDataLaneClockLane75HSMode-ClocktoDataDatatoHSDTSignalinPracticeVCM=200mVnomVo+:typically~300mVVo-:typically~100mVVdiff(positive)76HSDTSignalinPracticeVCM=2LPSignalingDetailedViewTypically1.2VTLPX-min:50ns77LPSignalingDetailedViewTypiLPDTSignalinPractice2TLPXtypically1.2VDPDN78LPDTSignalinPractice2TLPXtyPHYLayerGlobalOperationPHYLayerGlobalOperationDataUnitOfD-PHYMinimumDataUnitis1ByteTransmitter-Bytestream->BitstreamReceiver-Bitstream->BytestreamHSLanecanbedifferential1or0LPLaneonD0canhavefourstate(LP+/-)LP00:"Bridge","Space"LP01:"HS-Rqst","Mark-0"LP10:"LP-Rqst","Mart-1"LP11:"Stop"80DataUnitOfD-PHYMinimumDataD-PHYOperationFlowDiagramLP-11(Stop)StateThestartstateofeveryoperation.MajorThreeTypeModesEscapeModeHSTBusTurnAroundPHYStateisdecidedbyLPstateHSDT:LP11->LP01->LP00->HSDT->LP-11LPDT:LP11->LP10->LP00->EscapeMode

->LP11InCaseofClockLaneHSTisSupportedforClockSupply81D-PHYOperationFlowDiagramLPEscapeModeOperationEscapeModeEntry,EscapeModeLeaveEscapeModeCommandsEscapeCommandTypeEntryCommandPattern(Firstbit->LastBitTransmittedD1,D2,D3D0Low-PowerDataTransmissionMode11100001(0x87,LSBFirst)-oUltra-LowPowerModeMode00011110(0x78)ooUndefined-1Mode10011111--Undefined-2Mode11011110--Reset-TriggerTrigger01100010(0x46)-oTearingEffectTrigger01011101(0xBA)-oAcknowledgeTrigger00100001(0x84)-oUnknown-5Trigger10100000--82EscapeModeOperationEscapeMoEscapeModeOperation-LPDTLowPowerDataTransmission83EscapeModeOperation-LPDTLEscapeModeOperation-ResetTriggerUltraLowPowerState84EscapeModeOperation-ResetEscapeModeinPractice-LPDTEMELP11-LP10-LP00-LP01-LP00EscapeModeCommandLPDT11100001(0x87)Data1-10011100(0x39)(PacketHeader)DPDN85EscapeModeinPractice-LPDTHSModeOperationHighSpeedDataTransmissionRequestLP11->LP01->LP00Clock,DataLane:SameEntryHighSpeedClockLaneisstartedbeforeDataTransmission86HSModeOperationHighSpeedDaHSModeOperation-DataLaneEntryLowPowerModetoHighSpeedModeLP11-LP01-LP00-SOT-HSDTSynchronizationCode:00011101DataTransmission87HSModeOperation-DataLaneHSModeOperation-DataLaneLeaveLowPowerModetoHighSpeedModeHSDT->EOT->LP1188HSModeOperation-DataLaneHSModeOperationinPractice-LPDTtoHSDTLP01LP00LP11LPTransmitterDrivingHSTransmitterDrivingHSClockR-termOnDPDN89HSModeOperationinPracticeHSModeOperationinPractice-SOTSOT00011101DATA0ClkData90HSModeOperationinPracticeBusTurnAroundHandoverBusPossessionHosttoclient,clienttohostWhenhostrequestdatafromclientandwhenhostreadstatusofclientClientmustsendBTAafterclient'sdatatransmissionTE-signalingSequence(ex,ReadRequesttoClient)HostSend"ReadRequest"toClient->HostsendsBTA->ClientGetBus->HostReleasesBus->Clientsendsdata->ClientsendsBTA->HostGetBus

LP11-LP10-LP00-LP10-LP0091BusTurnAroundHandoverBusPoBusTurnAroundinPracticeBTAClientLPDTHostDrivingClientDrivingDPDN92BusTurnAroundinPracticeBTALaneManagementLayerLaneManagementLayerMultiLaneDistributionandMergingDistributorFunction(transmit)MergerFunction(receive)94MultiLaneDistributionandMeDataTransmissionExample-2Lane95DataTransmissionExample-2DataTransmissionExample-3Lane96DataTransmissionExample-3DSIProtocolLayerDSIProtocolLayerPacket-basedProtocolDataFlowImagedata,Signalevents,Commands->ProtocolLayer->Packets->Physicallayer->PacketReceive->InterpretPackettoImagedata,SignalEvent,CommandsSignalEvent:V-sync,H-sync.Commands:DCSCommandsManypacketscanbetransferredinatransmissionPacketConcatenationPacketTypesShortPacket-4byteincludeECCLongPacket-upto65kbytes98Packet-basedProtocolDataFlowShortPacketFormatECCGeneration-DI-Data0-Data1ECC99ShortPacketFormatECC-DIECC4LongPacketFormatCRCCalculation-DataCRCECCGeneration-DI-WordCountECC100LongPacketFormatCRC-DataCREndianPolicyLongPacketCaseLSByteFirst,MSByteLast101EndianPolicyLongPacketCase4VirtualChannelUpto4peripheralspossiblewithtaggedcommandorblocksofdata,usingtheVirtualChannelIDFieldDSIhubisneeded,NotpossibletoconnectmanydisplaytosamebusDSIHubHostProcessorMainDisplayPanelLCDDisplayBusInterfaceBusInterfaceDSIOut1Out2InterfaceLCDDisplayFrameBufferSub-Display102VirtualChannelUpto4peripheMultiplePacketsperTransmission-WithEoTp-WithoutEoTp103MultiplePacketsperTransmissDataTypeOnlyVideoModeVideoModeCommandModeMotorolaLegacyoperationforvideomodeProtocolSpecific104DataTypeOnlyVideoModeVideoDataTypeOnlyVideoModeVideoModeCommandModeProtocolSpecific105DataTypeOnlyVideoModeVideoPacketsforDCScommandsDCSShortWrite:writeasingledatabytetoaperipheral05h/15h(noparameters/oneparameter)IfBTAfollowsACKbydisplayo