Fujitsu MHV2040AH, MHV2100AH manual Read Multiple X’C4’, Execution example of Read Multiple command

Page 139

5.3 Host Commands

(18) READ MULTIPLE (X’C4’)

The READ MULTIPLE Command performs the same as the READ SECTOR(S) Command except that when the device is ready to transfer data for a block of sectors, and enters the interrupt pending state only before the data transfer for the first sector of the block sectors. In the READ MULTIPLE command operation, the DRQ bit of the Status register is set only at the start of the data block, and is not set on each sector.

The number of sectors per block is defined by a successful SET MULTIPLE MODE Command. The SET MULTIPLE MODE command should be executed prior to the READ MULTIPLE command.

If the number of requested sectors is not divided evenly (having the same number of sectors [block count]), as many full blocks as possible are transferred, then a final partial block is transferred. The number of sectors in the partial block to be transferred is n where n = remainder of (“number of sectors”/”block count”).

If the READ MULTIPLE command is issued before the SET MULTIPLE MODE command is executed or when the READ MULTIPLE command is disabled, the device rejects the READ MULTIPLE command with an ABORTED COMMAND error.

Figure 5.2 shows an example of the execution of the READ MULTIPLE command.

•

•

Block count specified by SET MULTIPLE MODE command = 4 (number of sectors in a block)

READ MULTIPLE command specifies;

Number of requested sectors = 9 (Sector Count register = 9)

Figure 5.2 Execution example of READ MULTIPLE command

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Contents Disk Drive Product Manual MHV2100AH, MHV2080AH MHV2060AH, MHV2040AHHandling of This Manual For Safe OperationRevision History This page is intentionally left blank Overview of Manual PrefaceOperating Environment Conventions for Alert MessagesConventions Liability Exception This page is intentionally left blank Important Alert Messages Important Alert ItemsThis page is intentionally left blank Manual Organization Disk Drive Maintenance ManualDisk Drive Product Manual This page is intentionally left blank Contents Theory of Device Operation Installation ConditionsInterface Contents101 121 Operations Glossary GL-1 Acronyms and Abbreviations AB-1 Index IN-1 Figures IllustrationsExecution example of Read Multiple command Examples of model names and product numbers Tables154 This page is intentionally left blank Device Overview Functions and performance FeaturesAdaptability Data buffer Error correction and retry by ECCHigh resistance against shock Connection to ATA interfaceMHV2100AH MHV2080AH MHV2060AH MHV2040AH Device SpecificationsSpecifications summary Specifications 1Examples of model names and product numbers Specifications 2Model and product number MHV2100AHInput Voltage Power RequirementsRipple Current and power dissipation Current Requirements and Power DissipationEnvironmental specifications Environmental SpecificationsCurrent fluctuation Typ. at +5 V when power is turned on Power on/off sequenceShock and Vibration Acoustic noise specificationShock and vibration specification Acoustic NoiseMean time between failures Mtbf Service lifeData assurance in the event of power failure ReliabilityMedia Defects Error RateUnrecoverable read error Positioning errorAdvanced Power Management Advanced Power Management Advanced Power ManagementThis page is intentionally left blank Device Configuration Device Configuration Read/write circuit System ConfigurationATA interface 2 1 drive connection3 2 drives connection 2 drives configurationInstallation Conditions Dimensions DimensionsIntegration Guidance C141-E144 MountingOrientation Limitation of mounting FramePCA Location of breather Ambient temperature Handling cautions Service areaHandling cautions Cable Connections Device connectorFCI Cable connector specificationsCable connector specifications Device connectionPower supply connector CN1 Jumper SettingsLocation of setting jumpers Master drive-slave drive setting Factory default setting14 Csel setting Csel setting16 Example 2 of cable select Power up in standby settingTheory of Device Operation Spindle OutlineSubassemblies DiskSpindle motor driver circuit Circuit ConfigurationAir filter Servo circuitPower supply configuration PCA Power-on operation sequence Power-on SequenceSelf-calibration Self-calibration contentsExecution timing of self-calibration Command processing during self-calibrationWrite precompensation Read/write CircuitRead/write preamplifier PreAMP Write circuitAGC circuit Read circuitProgrammable filter circuit Viterbi detection circuit Digital PLL circuitFIR circuit D converter circuitServo control circuit Servo ControlA converter DAC Power amplifierMicroprocessor unit MPU Servo burst capture circuitVCM current sense resistor CSR Driver circuitOuter guard band Data-surface servo formatInner guard band Data areaPhysical sector servo configuration on disk surface Servo frame format Track following operation Actuator motor controlOperation to move the head to the reference cylinder Seek operationSpindle motor control Start modeAcceleration mode Stable rotation modeThis page is intentionally left blank Interface Physical Interface Interface signalsDasp GND Signal assignment on the connectorSignal assignment on the interface connector DA1 PDIAG-, Cblid DA0 DA2Dior MstrDiow StopIordy PdiagCblid DaspLogical Interface I/O registers 1 I/O registersDA2 DA1 DA0 UNC Idnf Abrt Command block registersError register X’1F1’ Data register X’1F0’Sector Count register X’1F2’ Features register X’1F1’Cylinder Low register X’1F4’ Sector Number register X’1F3’Cylinder High register X’1F5’ BSY Device/Head register X’1F6’DEV HS3 HS2 HS1 HS0 Status register X’1F7’Interface Control block registers Command register X’1F7’Alternate Status register X’3F6’ HOB Srst Host CommandsCommand code and parameters Device Control register X’3F6’Command Name Command code and parameters 1Parameter Used EXT Write Multiple FUA EXT Flush Cache EXT Command code and parameters 2Host Commands Command descriptions Host Commands Recalibrate X’10’ to X’1F’ MSB Read Sectors X’20’ or X’21’End head No. / LBA MSB Write Sectors X’30’ or X’31’ 1F7HST Status information 1F6HDH Write Verify X’3C’ Read Verify Sectors X’40’ or X’41’ Seek X’70’ to X’7F’ Diagnostic code Execute Device Diagnostic X’90’Host Commands Initialize Device Parameters X’91’ Download Microcode X’92’ Operation of Download Microcode Standby Immediate X’94’ or X’E0’ Unload Feature Unload Immediate Command Host Commands Standby X’96’ or X’E2’ Idle X’97’ or X’E3’ Interface ’FF’ Check Power Mode X’98’ or X’E5’Sleep X’99’ or X’E6’ Smart X’B0 Features register values subcommands and functions 1 Features register values subcommands and functions 2 ’DB’ Smart ENABLE/DISABLE Auto OFF-LINE Features register values subcommands and functions 3Smart Return Status Host Commands 1FF Format of device attribute value dataFormat of insurance failure threshold value data Attribute ID Data format version numberRaw attribute value Status FlagCurrent attribute value Attribute value for the worst case so farSelf-test execution status 10 Off-line data collection status11 Self-test execution status 13 Failure prediction capability flag Off-line data collection capability12 Off-line data collection capability Failure prediction capability flagInsurance failure threshold Error logging capability14 Error logging capability Check sumSmart error logging 16 Data format of Smart Summary Error Log 17 Data format of Smart Comprehensive Error Log Command data structureError data structure Total number of drive errorsSelf-test number Smart self-test18 Smart self-test log data format 1FCCurrent span under test 19 Selective self-test log data structureTest span Current LBA under test20 Selective self-test feature flags Feature FlagsSelective Self-test pending time min Device Configuration Identify Device Configuration XB1Device Configuration Restore Device Configuration FreezeDevice Configuration SET FR = C3h Device Configuration Restore FR = C0hDevice Configuration Freeze Lock FR = C1h Device Configuration Identify FR = C2hInterface 21 Device Configuration Identify data structure Interface Read Multiple X’C4’ Execution example of Read Multiple commandMSB Write Multiple X’C5’ Interface SET Multiple Mode X’C6’ Interface Read DMA X’C8’ or X’C9’ End head No. / LBA MSB 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’ ’3FFF’ 22 Information to be read by Identify Device command 122 Information to be read by Identify Device command 2 MHV2080AH MHV2060AH MHV2040AH Command without interrupt supports 2, 4, 8 and 16 sectors = Supports the Host Protected Area feature set Option customizing Word Bit C141-E217 Interface Write Stream EXT Interface Host Commands Word Bit Reserved Security level High, 1 Maximum ’CC’ SET Features X’EF’23 Features register values and settable modes ’BB’Data Transfer Mode Advanced Power Management APM Automatic Acoustic Management AAM 24 Contents of Security SET Password data Interface When the user password is selected When the master password is selectedSecurity UNLOCKX’F2’ Interface Security Erase Prepare X’F3’ Security Erase Unit X’F4’ Security Freeze Lock X’F5’ Interface 26 Contents of security password Interface Read Native MAX Address X’F8’ SET MAX Address SET MAX X’F9’SET MAX SET Password FR = 01h SET MAX Lock FR = 02h SET MAX Unlock FR = 03h SET MAX Freeze Lock FR = 04h Host Commands HOB=0 Read Sectors EXT X’24’ Option customizing DescriptionHOB=1 Read DMA EXT X’25’ Option customizing Description Error reporting conditions Read Multiple EXT X’29’ Option customizing Description Read LOG EXT X2F Optional command Customize Description Host Commands Write Sectors EXT X’34’ Option customizing Description Write DMA EXT X’35’ Option customizing Description SET MAX Address EXT X’37’ Option customizing Description SET MAX LBA Write Multiple EXT X’39’ Option customizing Description Write DMA FUA EXT X’3D’ Option customizing Description Write LOG EXT X’3F’ Optional command Customize Description Host Commands Read Verify Sectors EXT X’42 Option customizing Description Write Multiple FUA EXT X’CE’ Option customizing Description Flush Cache EXT X’EA’ Option customizing Description 27 Command code and parameters 1 Error posting27 Command code and parameters 2 PIO Data transferring commands from device to host Command ProtocolExecute Device Diagnostic Initialize Device Parameters Read Sectors Command protocol Protocol for command abort PIO Data transferring commands from host to device Write Sectors command protocol Commands without data transfer Read DMA EXT Write DMA EXT/FUA EXT Indentify Device DMA Other commandsDMA data transfer commands Read Multiple EXT Write Multiple EXT/FUA EXT SleepNormal DMA data transfer Overview Ultra DMA Feature SetUltra DMA data in commands Phases of operationInitiating an Ultra DMA data in burst Data in transfer Pausing an Ultra DMA data in burstTerminating an Ultra DMA data in burst Ultra DMA Feature Set Interface Initiating an Ultra DMA data out burst Ultra DMA data out commandsData out transfer Pausing an Ultra DMA data out burstTerminating an Ultra DMA data out burst Interface Ultra DMA CRC rules DIOW-STOP Series termination required for Ultra DMA28 Recommended series termination for Ultra DMA DIOR-HDMARDY-HSTROBEPIO data transfer TimingPIO data transfer timing Multiword data transfer 10 Multiword DMA data transfer timing mode11 Initiating an Ultra DMA data in burst Ultra DMA data transferStrobe Name Mode CommentMIN MAX 29 Ultra DMA data burst timing requirements 230 Ultra DMA sender and recipient timing requirements Mode Name Comment12 Sustained Ultra DMA data in burst Sustained Ultra DMA data in burst13 Host pausing an Ultra DMA data in burst Host pausing an Ultra DMA data in burst14 Device terminating an Ultra DMA data in burst Device terminating an Ultra DMA data in burst15 Host terminating an Ultra DMA data in burst Host terminating an Ultra DMA data in burst16 Initiating an Ultra DMA data out burst 17 Sustained Ultra DMA data out burst Sustained Ultra DMA data out burst18 Device pausing an Ultra DMA data out burst Device pausing an Ultra DMA data out burst19 Host terminating an Ultra DMA data out burst Host terminating an Ultra DMA data out burst20 Device terminating an Ultra DMA data out burst Device terminating an Ultra DMA data out burstMaster and slave devices are present 2-drives configuration Power-on and resetOnly master device is present Operations Response to power-on Device Response to the ResetResponse to power-on Response to hardware resetResponse to hardware reset Response to software reset Response to software resetResponse to diagnostic command Response to diagnostic commandActive idle mode Power SavePower save mode Active modeSleep mode Standby modeDefect Processing Power commandsSpare area Sector slip processing Alternating processing for defective sectorsTrack slip processing Automatic alternating processing Automatic alternating processingData buffer structure Read-ahead Cache8MB buffer 8,388,608 bytes Invalidating caching-target data Commands that are targets of cachingCaching operation Data that is a target of cachingSmart Miss-hit Using the read segment bufferSequential hit Full hit Partial hit Invalidation of cached data Command that are targets of cachingWrite Cache Cache operationEnabling and disabling Status report in the event of an errorReset response Caching function when power supply is turned onWrite Cache This page is intentionally left blank Glossary Positioning Power save modeRotational delay PIO Programmed input-outputVCM StatusThis page is intentionally left blank Acronyms and Abbreviations This page is intentionally left blank AAM IndexIndex Host pausing ultra DMA data Read Native MAX Address Read Sectors CommandSurface temperature measurement This page is intentionally left blank Japan Comment FormThis page is intentionally left blank C141-E217-01EN This page is intentionally left blank
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MHV2040AH, MHV2080AH, MHV2060AH, MHV2100AH specifications

The Fujitsu MHV series of hard disk drives, specifically the MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH, are renowned for their reliability and performance in the mobile HDD segment. Designed primarily for use in laptops and other portable devices, these drives integrate cutting-edge technologies to meet the demands of today's data-intensive applications.

One of the hallmark features of the MHV series is its high data density, allowing for substantial storage capabilities in compact sizes. The MHV2060AH offers a storage capacity of 60 GB, while the MHV2080AH and MHV2100AH offer 80 GB and 100 GB respectively. The MHV2040AH provides a slightly more modest but still robust 40 GB of storage. This range of capacities ensures that users can select the model that best fits their storage needs.

The drives utilize the latest perpendicular magnetic recording (PMR) technology, which enhances recording efficiency and increases data storage densities. This technology significantly optimizes the use of disk surface area, providing better performance and more reliable data access. Additionally, the MHV series incorporates an advanced actuator system that ensures precision head positioning, enhancing data integrity and reducing error rates during read and write operations.

In terms of performance, the MHV series maintains a revolutions per minute (RPM) rating of 5400, which strikes a balance between speed and energy efficiency, making these drives suitable for low-power applications. The drives are also designed with a low acoustic level, generating minimal noise during operation—a crucial factor for mobile users who prefer quieter devices.

Furthermore, the Fujitsu MHV series features a robust shock resistance design, allowing them to withstand the rigors of mobile computing. This makes them suitable for use in portable environments subject to vibration and physical movement, thus ensuring data security and drive longevity.

Overall, the Fujitsu MHV2060AH, MHV2080AH, MHV2100AH, and MHV2040AH represent a formidable selection of mobile hard disk drives filled with advanced technologies and features, making them well-suited for a wide range of applications in today's fast-paced digital world. With their combination of storage capacity, performance, and durability, these drives continue to serve as reliable solutions for users seeking efficient data storage in portable formats.
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