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Fujitsu MHV2040BH, MHV2100BH manual Logical Interface, Conceptual diagram of communication layers

Models: MHV2100BH MHV2040BH MHV2060BH MHV2080BH

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Interface

5.2 Logical Interface

The host system and the device communicate with each other by sending and receiving serial data.

The host and the device have several dedicated communication layers between them. These layers have different functions, enabling communication between the different levels of layers within the host or device and between layers at the same level that link the host and device.

Figure 5.3 is a conceptual diagram of the communication layers.

Host:	Application	Device:
Host:	layer 4	Device:
Software control		Software control
Buffer Memory		Buffer memory
DMA engine(s)		DMA engine(s)
Shadow Block Register	Transport	Block Register
Shadow Block Register	layer 3	Block Register
Transport Layer		Transport Layer
	Link
Link Layer	layer 2	Link Layer
Link Layer		Link Layer
	Physical
	layer 1
Physical Layer		Physical Layer
Host located layers		Device located layers

Figure 5.3 Conceptual diagram of communication layers

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C141-E224

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Fujitsu MHV2040BH, MHV2100BH, MHV2080BH, MHV2060BH manual Logical Interface, Conceptual diagram of communication layers

Contents

MHV2100BH, MHV2080BH MHV2060BH, MHV2040BH Disk Drives Product ManualFor Safe Operation Handling of This ManualRevision History This page is intentionally left blank Preface Overview of ManualConventions for Alert Messages Operating EnvironmentConventions Liability Exception This page is intentionally left blank Important Alert Items Important Alert MessagesThis page is intentionally left blank Disk Drives Maintenance Manual Manual OrganizationDisk Drives Product Manual This page is intentionally left blank Contents Device Configuration Installation ConditionsTheory of Device Operation Contents Interface3.1 101 Power Save Controlled by Interface Power Management IPM OperationsGlossary GL-1 Acronyms and Abbreviations AB-1 Index IN-1 Illustrations FiguresResponse to power-on when the host is powered on Tables Examples of model names and product numbersRelationship between combination of Identifier This page is intentionally left blank Device Overview Features Functions and performanceAdaptability High resistance against shock Error correction and retry by ECCLow noise and vibration Connection to Sata interfaceSpecifications 1 Device SpecificationsSpecifications summary MHV2100BH MHV2080BH MHV2060BH MHV2040BHMHV2100BH Specifications 2Model and product number Examples of model names and product numbersPower Requirements Input VoltageRipple Current Requirements and Power Dissipation Current and power dissipationPower on/off sequence Environmental SpecificationsCurrent fluctuation Typ. at +5 V when power is turned on Environmental specificationsAcoustic Noise Acoustic noise specificationShock and vibration specification Shock and VibrationReliability Service lifeData assurance in the event of power failure Mean time between failures MtbfPositioning error Error RateUnrecoverable read error Media DefectsAdvanced Power Management Recommended power-off sequenceAdvanced Power Management Interface Power Management IPM Host-initiated interface power management HipmDevice-initiated interface power management Dipm Interface power management Elimination of Hazardous SubstancesThis page is intentionally left blank Device Configuration Device Configuration Drive connection System ConfigurationSata interface Read/write circuitThis page is intentionally left blank Installation Conditions Dimensions DimensionsMounting Integration Guidance C141-E144Orientation Frame Limitation of mountingPCA Location of breather Ambient temperature Service area Handling cautionsESD Sumitomo 3MHios Device connector Connections with Host SystemConnector specifications for host system Signal segment and power supply segmentRecommended connector specifications for the host system Sata interface cable connection This page is intentionally left blank Theory of Device Operation Disk OutlineSubassemblies SpindleServo circuit Circuit ConfigurationAir filter Spindle motor driver circuitPower supply configuration PCA Power-on Sequence Power-on operation sequenceSelf-calibration contents Self-calibrationCommand processing during self-calibration Execution timing of self-calibrationWrite circuit Read/write CircuitRead/write preamplifier PreAMP Write precompensationRead circuit AGC circuitProgrammable filter circuit D converter circuit Digital PLL circuitFIR circuit Viterbi detection circuitServo Control Servo control circuitServo burst capture circuit Power amplifierMicroprocessor unit MPU A converter DACDriver circuit VCM current sense resistor CSRData area Data-surface servo formatInner guard band Outer guard bandPhysical sector servo configuration on disk surface Servo frame format Seek operation Actuator motor controlOperation to move the head to the reference cylinder Track following operationStable rotation mode Start modeAcceleration mode Spindle motor controlThis page is intentionally left blank Interface Interface signals Physical InterfaceComreset / Cominit Comwake5VDC/GND Signal interface regulation Out of band signalingEOF AlignCont PmackRrdy RIPROK SOFElectrical specifications Physical Layer Electrical Requirements 1/3FER Physical Layer Electrical Requirements 2/3 Physical Layer Electrical Requirements 3/3 Connector pinouts Connector pinoutsDriving Ready LED 5 P11 functionStaggered Spin-up Requirements for P11 as an output pinExample of the circuit for driving Ready LED Hot Plug Conceptual diagram of communication layers Logical InterfaceLink layer Communication layersPhysical layer Transport layerOutline of the Shadow Block Register Shadow Block RegisterRegister Host to Device Outline of the frame information structure FISFIS types Register Host to Device FIS layoutRegister Device to Host DMA Active Device to HostDMA Setup Device to Host or Host to Device Bidirectional TAGBist Active Bidirectional Bist combinationsData Host to Device or Device to Host Bidirectional Data FIS Bidirectional layoutUNC Error FieldShadow block registers SfrrSector Number Field exp Features Field expSector Count Field exp Cylinder Low Field expHS3 HS2 HS1 HS0 Cylinder High Field expDevice/Head Field HS3Status field Bit Device Write Fault DF bitBit Error ERR bit Bit 7 Busy BSY bitDevice Control Field Command FieldBit 2 Software Reset Srst EStatus FieldHost Commands Command code and parametersCommand code and parameters 1/3 Command code and parameters 2/3 Command code and parameters 3/3 Command descriptions Error reporting conditions Recalibrate X’10’ to X’1F’Read Sectors X’20’ or X’21’ LBA LSB LBAWrite Sectors X’30’ or X’31’ 00 *1 Error information Write Verify X’3C’ Host Commands Read Verify Sectors X’40’ or X’41’ Host Commands Seek X’70’ to X’7F’ Execute Device Diagnostic X’90’ Diagnostic codeInitialize Device Parameters X’91’ Download Microcode X’92’ Operation of Download MicrocodeError reporting conditions Standby Immediate X’94’ or X’E0’ Idle Immediate X’95’ or X’E1’ Standby X’96’ or X’E2’ Idle X’97’ or X’E3’ Host Commands Check Power Mode X’98’ or X’E5’ ’FF’Comreset Sleep X’99’ or X’E6’Smart X’B0’ 10 Features Field values subcommands and functions 1/3 Smart Disable Operations 10 Features Field values subcommands and functions 2/3Smart Enable Operations Smart Read LOG10 Features Field values subcommands and functions 3/3 ’DB’ Smart ENABLE/DISABLE Auto OFF-LINESmart Return Status Key C2h Key 4Fh 12 Format of guarantee failure threshold value data 11 Format of device attribute value data1FF Data format version number Attribute IDAttribute value for the worst case so far Status FlagCurrent attribute value Raw attribute value13 Off-line data collection status Self-test execution status14 Self-test execution status 17 Drive error logging capability 15 Off-line data collection capability16 Failure prediction capability flag Checksum Guarantee failure thresholdSmart error logging 18 Log Directory Data Format19 Data format of Smart Summary Error Log 1/2 Error data structure 19 Data format of Smart Summary Error Log 2/2Command data structure Total number of drive errors20 Data format of Smart Comprehensive Error Log Smart Self-TestSelf-test number 21 Smart self-test log data format1FC Self-test index22 Selective self-test log data structure Test SpanCurrent LBA under test Current Span under test Feature Flags23 Selective self-test feature flags Selective Self-test pending time minDevice Configuration Freeze Device Configuration XB1Device Configuration Restore Device Configuration IdentifyDevice Configuration Restore Features Field = C0h Device Configuration Freeze Lock Features Field = C1hDevice Configuration Identify Features Field = C2h Device Configuration SET Features Field = C3h24 Device Configuration Identify data structure 1/2 Word Value Content24 Device Configuration Identify data structure 2/2 Read Multiple X’C4’ 10 Execution example of Read Multiple command LBA LSB Write Multiple X’C5’ At command issuance Shadow Block Registers setting contents SET Multiple Mode X’C6’ Interface Read DMA X’C8’ or X’C9’ LBA Write DMA X’CA’ or X’CB’ Interface Read Buffer X’E4’ Flush Cache X’E7’ Write Buffer X’E8’ Identify Device X’EC’ Identify Device DMA X’EE’ 25 Information to be read by Identify Device command 1/3 ’3FFF’25 Information to be read by Identify Device command 2/3 25 Information to be read by Identify Device command 3/3 MHV2100BH MHV2080BHHost Commands Word 59 Transfer sector count currently set by READ/WRITE Host Commands Interface Bit Interface Device always returns the fixed value indicated on the left Interface SET Features X’EF’ 26 Features field values and settable modes 1/226 Features field values and settable modes 2/2 Data Transfer Mode Advanced Power Management APM Serial ATA Functions Automatic Acoustic Management AAM27 Contents of Security SET Password data Error reporting conditions When the master password is selected When the user password is selectedSecurity UNLOCKX’F2’ Host Commands Security Erase Prepare X’F3’ Security Erase Unit X’F4’ Security Freeze Lock X’F5’ Error reporting conditions 29 Contents of security password Error reporting conditions Read Native MAX Address X’F8’ LbalsbSET MAX X’F9’ SET MAX AddressSET MAX SET Password Features Field = 01h Password information SET MAX Lock Features Field = 02h SET MAX Unlock Features Field = 03h SET MAX Freeze Lock Features Field = 04h Read Sector S EXT X’24’ Description Read DMA EXT X’25’ Description Read Native MAX Address EXT X’27’ Read Multiple EXT X’29’ Read LOG EXT X2F Sector offset 30 Data format of Read Log Ext log page 10h 31 Tag field information32 Data format of Read Log Ext log page 11h 33 Counter Identifier informationWrite Sector S EXT X’34’ Description Write DMA EXT X’35’ Description SET MAX Address EXT X’37’ SET MAX LBA Write Multiple EXT X’39’ Write LOG EXT X3F Error information C141-E224 137 Read Verify Sector S EXT X’42’ Flush Cache EXT X’EA’ Write Multiple FUA EXT XCE Write DMA FUA EXT X3D Read FP DMA Queued Write FP DMA Queued Command Name Error posting34 Command code and parameters 1/2 Sfrw Sfrr34 Command code and parameters 2/2 TK0NFDWF Execute Device Diagnostic Initialize Device Parameters Command ProtocolNon-data command protocol DataHost PIO data-in command protocol PIO data-out command protocol 12 PIO data-in command protocol13 PIO data-out command protocol DMA data-in command protocol Read DMA EXT Identfy Device Identfy Device DMADMA data-out command protocol Write DMA EXT FUA EXTNative Command Queuing protocol Read FP DMA Queued Write FP DMA Queued16 Read FP DMA Queued command protocol 17 Write FP DMA Queued command protocol Power-on and Comreset 18 Power-on sequence19 Comreset sequence This page is intentionally left blank Operations Reset and Diagnosis Response to power-onReset and Diagnosis Response to Comreset Response to ComresetSoftware settings preservation Comreset preservation requirementsSET Address MAX EXT Response to a software reset Response to a software resetActive mode Power SavePower save mode Active idle modeStandby mode Sleep modePower commands Power Save Controlled by Interface Power Management IPM Power save mode of the interfacePartial mode Slumber mode Read-ahead Cache Data buffer structureMB buffer Commands that are targets of caching Caching operationData that is a target of caching Invalidating caching-target data Using the read segment buffer Miss-hitSequential hit Full hitHAP end location of the previous read command Partial hit Cache operation Command that are targets of cachingWrite Cache Invalidation of cached dataCashing function when power supply is turned on Status report in the event of an errorComreset and software reset response Enabling and disablingThis page is intentionally left blank Glossary Master Device Power save modeHost receptacle PIO Programmed input-outputSerial-ATA Rotational delaySeek time Slave DeviceThis page is intentionally left blank Acronyms and Abbreviations This page is intentionally left blank Index CachingIndex Example of model name and product Mean time between failure Mtbf Read Native MAX Address 4-3Status, off-line data collection Comment Form JapanThis page is intentionally left blank C141-E224-01EN This page is intentionally left blank