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Fujitsu MHT2080BH, MHT2060BH, MHT2040BH Data-surface servo format, Inner guard band IGB, Data area

Models: MHT2080BH MHT2060BH MHT2040BH

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Theory of Device Operation

4.7.2 Data-surface servo format

Figure 4.7 describes the physical layout of the servo frame. The three areas indicated by (1) to (3) in Figure 4.7 are described below.

(1) Inner guard band (IGB)

This area is located inside the user area, and the rotational speed of the VCM can be controlled on this cylinder area for head moving.

(2) Data area

This area is used as the user data area and the SA cylinder.

(3) Outer guard band (OGB)

This area is located at outer position of the user data area, and the rotational speed of the spindle can be controlled on this cylinder area for head moving.

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Image 68

Fujitsu MHT2080BH, MHT2060BH, MHT2040BH Data-surface servo format, Inner guard band IGB, Data area, Outer guard band OGB

Contents

MHT2080BH, MHT2060BH, MHT2040BH Disk Drives Product Manual For Safe Operation Handling of This Manual Revision History This page is intentionally left blank Preface Overview of Manual Conventions Conventions for Alert MessagesOperating Environment Liability Exception This page is intentionally left blank Important Alert Items Important Alert Messages This page is intentionally left blank MHT2040BH Disk Drives Product Manual MHT2040BH Disk Drives Maintenance ManualManual Organization This page is intentionally left blank Contents Installation Conditions Theory of Device Operation Interface 102 Operations IN-1 GL-1Acronyms and Abbreviations AB-1 Illustrations Figures Response to power-on when the host is powered Recommended connector specifications for the host system Tables Relationship between combination of Identifier and Security Device Overview Adaptability FeaturesFunctions and performance Interface Device Specifications Specifications summarySpecifications 1/2 MHT2080BH MHT2060BH MHT2040BH Specifications 2/2 Model and product numberMHT2080BH Examples of model names and product numbers Ripple Power RequirementsInput Voltage Current Requirements and Power Dissipation Current and power dissipation Environmental Specifications Current fluctuation Typ. at +5 V when power is turned onPower on/off sequence Environmental specifications Acoustic noise specification Shock and vibration specificationAcoustic Noise Shock and Vibration Service life Data assurance in the event of power failureReliability Mean time between failures Mtbf Error Rate Unrecoverable read errorPositioning error Media Defects Advanced Power Management Advanced power management Device-initiated Interface Power Management Dipm Interface Power Management IPMHost-initiated Interface Power Management Hipm Interface power management This page is intentionally left blank Device Configuration Device Configuration System Configuration Sata interfaceDrive connection Read/write circuit This page is intentionally left blank Installation Conditions Dimensions Dimensions Orientation MountingIntegration Guidance C141-E144 PCA FrameLimitation of mounting Location of breather Ambient temperature Service area Handling cautions Hios ESDSumitomo 3M Device connector Connections with Host System Recommended connector specifications for the host system Connector specifications for host systemSignal segment and power supply segment Sata interface cable connection This page is intentionally left blank Theory of Device Operation Outline SubassembliesDisk Spindle Circuit Configuration Air filterServo circuit Spindle motor driver circuit Power Supply Configuration PCA Power-on Sequence Power-on operation sequence Self-calibration contents Self-calibration Command processing during self-calibration Execution timing of self-calibration Read/write Circuit Read/write preamplifier PreAMPWrite circuit RLL code Meeprml Programmable filter circuit Read circuitAGC circuit Digital PLL circuit FIR circuitD converter circuit Viterbi detection circuit Microprocessor unit MPU Servo ControlServo control circuit Power amplifier Servo burst capture circuitA converter DAC Spindle motor control circuit Data-surface servo format Inner guard band IGBData area Outer guard band OGB Physical sector servo configuration on disk surface Servo frame format Actuator motor control Operation to move the head to the reference cylinderSeek operation Track-following operation Spindle motor control Start modeAcceleration mode Stable rotation mode This page is intentionally left blank Interface Interface signals Physical Interface 5VDC/GND Comreset / CominitComwake Signal interface regulation Out of band signaling Primitives descriptions Electrical specifications Physical Layer Electrical Requirements 1/2 Ominit COMRESET/CPhysical Layer Electrical Requirements 2/2 Connector pinouts Connector pinouts Conceptual diagram of communication layers Logical Interface Communication layers Physical layerLink layer Transport layer Outline of the Shadow Block Register Shadow Block Register Outline of the frame information structure FIS FIS typesRegister Host to Device Register Host to Device FIS layout Register Device to Host DMA Active Device to Host DMA Setup Device to Host or Host to Device Bidirectional TAG Bist Active Bidirectional Bist combinations Data Host to Device or Device to Host Bidirectional Data FIS Bidirectional layout UNC Error FieldShadow block registers Features Field exp Sector Count Field expSector Number Field exp Cylinder Low Field exp Cylinder High Field exp Device/Head FieldHS3 HS2 HS1 HS0 HS3 Bit Device Write Fault DF bit Bit Error ERR bitStatus field Bit 7 Busy BSY bit Command Field Bit 2 Software Reset SrstDevice Control Field EStatus Field Command code and parameters 1/3 Host CommandsCommand code and parameters 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 LBA Read Long X’22’ or X’23’ Write Sectors X’30’ or X’31’ 00 *1 Error information Write Long X’32’ or X’33’ Cylinder No. LSB 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 code Initialize Device Parameters X’91’ Download Microcode X’92’ Operation of Download Microcode Error 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’ Features Field values subcommands and functions 1/3 Features Field values subcommands and functions 2/3 Smart Enable OperationsSmart Disable Operations Smart Read LOG Smart Return Status Features Field values subcommands and functions 3/3’DB’ Smart ENABLE/DISABLE Auto OFF-LINE Key C2h 1FF 11 Format of guarantee failure threshold value data10 Format of device attribute value data Data format version number Attribute ID Status Flag Current attribute valueAttribute value for the worst case so far Raw attribute value 13 Self-test execution status 12 Off-line data collection statusSelf-test execution status 15 Failure prediction capability flag 16 Drive error logging capability14 Off-line data collection capability Guarantee failure threshold Smart error loggingChecksum 17 Log Directory Data Format 18 Data format of Smart Summary Error Log 1/2 18 Data format of Smart Summary Error Log 2/2 Command data structureError data structure Total number of drive errors 19 Data format of Smart Comprehensive Error Log Smart Self-Test 20 Smart self-test log data format 1FCSelf-test number Self-test index Current LBA under test 21 Selective self-test log data structureTest Span Feature Flags 22 Selective self-test feature flagsCurrent Span under test Selective Self-test pending time min Device Configuration XB1 Device Configuration RestoreDevice Configuration Freeze Device Configuration Identify Device Configuration Restore Features Field = C0h Device Configuration Freeze Lock Features Field = C1h Device Configuration Identify Features Field = C2h Device Configuration SET Features Field = C3h 23 Device Configuration Identify data structure Word Value Content Read Multiple X’C4’ 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’ Host Commands Read DMA X’C8’ or X’C9’ LBA Write DMA X’CA’ or X’CB’ Host Commands Read Buffer X’E4’ Flush Cache X’E7’ Write Buffer X’E8’ Identify Device X’EC’ Identify Device DMA X’EE’ 24 Information to be read by Identify Device command 1/3 ’3FFF’ 24 Information to be read by Identify Device command 2/3 24 Information to be read by Identify Device command 3/3 Interface Bit 0 Reserved C141-E203-01EN FIS Host Commands Word Bit Bit 0 1 = Supports the Mode C141-E203-01EN Interface SET Features X’EF’ 25 Features field values and settable modes 1/2 25 Features field values and settable modes 2/2 Data Transfer Mode Advanced Power Management APM Serial ATA Functions Automatic Acoustic Management AAM 26 Contents of Security SET Password data Error reporting conditions Security UNLOCKX’F2’ When the master password is selectedWhen the user password is selected Host Commands Security Erase Prepare X’F3’ Security Erase Unit X’F4’ Security Freeze Lock X’F5’ Error reporting conditions 28 Contents of security password Error reporting conditions Read Native MAX Address X’F8’ Lbalsb SET MAX X’F9’ SET MAX Address SET 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 SN EXP Read Sector S EXT X’24’ DescriptionCL EXP Read DMA EXT X’25’ Description Read Native MAX Address EXT X’27’ Read Multiple EXT X’29’ Read LOG EXT X2F CL EXP SN EXP 29 Data format of Read Log Ext log page 10h 30 Tag field information Write 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 132 C141-E203-01EN 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 Error posting 31 Command code and parameters 1/2Command Name Sfrw Sfrr 31 Command code and parameters 2/2 Execute Device Diagnostic Initialize Device Parameters Command ProtocolNon-data command protocol Host PIO data-in command protocol PIO data-out command protocol Piosu Data 12 PIO data-out command protocol Piosu DMA data-in command protocol Read DMA EXT Identfy DMA DMA data-out command protocol Write DMA EXT FUA EXT Native Command Queuing protocol Read FP DMA Queued Write FP DMA Queued 15 Read FP DMA Queued command protocol 16 Write FP DMA Queued command protocol Power-on and Comreset 17 Power-on sequence 18 Comreset sequence Operations Reset and Diagnosis Response to power-on Reset and Diagnosis Response to Comreset Response to Comreset Response to a software reset Response to a software reset Power Save Power save modeActive mode Active idle mode Standby mode Sleep mode Power commands Partial mode Interface Power SavePower save mode of the interface Slumber mode 8MB buffer Read-ahead CacheData buffer structure Data that is a target of caching Commands that are targets of cachingCaching operation Invalidating caching-target data Using the read segment buffer Miss-hit Sequential hit Full hit HAP end location of the previous read command Partial hit Command that are targets of caching Write CacheCache operation Invalidation of cached data Status report in the event of an error Comreset and software reset responseCashing function when power supply is turned on Enabling and disabling This page is intentionally left blank Glossary Power save mode Rotational delayPIO Programmed input-output Positioning Acronyms and Abbreviations This page is intentionally left blank Block diagram Index Index Device-initiated interface power Frame information structure FIS Moving head to reference cylinder .4-13 Read Native MAX Address RLL algorithm run length limited Sensing and compensating for IN-8 C141-E203-01EN Japan Comment FormDisk Drives Product Manual This page is intentionally left blank C141-E203-01EN This page is intentionally left blank