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MHJ2181AT, MHK2120AT, MHK2090AT, MHK2060AT manual This page is intentionally left blank
Models:
MHK2060AT
MHJ2181AT
MHK2090AT
MHK2120AT
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3
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227 pages
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Specification
Install
Dimension
Maintenance
Device Configuration
Power-on and reset
Diagnostic code
Command block registers
Error Rate
Rotational delay
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Contents
Disk Drives Product Manual
MHJ2181AT, MHK2120AT MHK2090AT, MHK2060AT
Handling of This Manual
For Safe Operation
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Revision History
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Overview of Manual
Preface
Operating Environment
Conventions for Alert Messages
Liability Exception
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Important Alert Messages
Important Alert Items
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Disk Drives Maintenance Manual
Manual Organization
Disk Drives Product Manual
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Contents
Contents
Interface
Contents
GL-1
Figures
Illustrations
Tables
Contents
Device Overview
Features
Functions and performance
Adaptability
Features
Device Specifications
Specifications summary
Specifications 1/2
Power Requirements
Model and product number
Model names and product numbers
Current fluctuation Typ. at +5V when power is turned on
Current and power dissipation
Environmental specifications
Environmental Specifications
Shock and Vibration
Acoustic noise specification
Shock and vibration specification
Acoustic Noise
Reliability
Media Defects
Error Rate
Device Configuration
Disk drive outerview the MHJ Series and MHK Series
Device Configuration
MHJ2181AT MHK2120AT MHK2090AT
Configuration of disk media heads
3 2 drives connection
System Configuration
ATA interface
2 1 drive connection
System Configuration
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Installation Conditions
Dimensions MHJ series 1/2
Dimensions
Dimensions MHK series 2/2
Orientation Sample MHJ2181AT
Mounting
Mounting frame structure
PCA
Location of breather
Measurement point Temperature
Service area Sample MHJ2181AT
Cable Connections
Device connector
Berg
Cable connector specifications
Cable connector specifications
Device connection
Jumper Settings
Power supply connector CN1
Location of setting jumpers
Master drive-slave drive setting
Factory default setting
13 Csel setting
Csel setting
15 Example 2 of Cable Select
Theory of Device Operation
Head
Outline
Subassemblies
Disk
MHJ2181AT MHK2120AT MHK2090AT MHK2060AT
Spindle
Actuator
Air filter
Circuit Configuration
Circuit Configuration
Power-on Sequence
Self-calibration
Self-calibration contents
Execution timing of self-calibration
Read/write preamplifier PreAMP
Command processing during self-calibration
Self-calibration execution timechart
Read/write Circuit
Write precompensation algorithm
Write circuit
Read/write circuit block diagram
Read circuit
Frequency characteristic of programmable filter
Digital PLL circuit
Servo control circuit
Servo Control
Servo Control
Physical sector servo configuration on disk surface
Servo Control
Servo frame format
Data-surface servo format
Actuator motor control
Spindle motor control
Servo Control
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Interface
Physical Interface
Interface signals
Signal assignment on the interface connector
Signal assignment on the connector
Dior
Mstr
Diow
Stop
Dasp
KEY
Pdiag
Cblid
Logical Interface
1 I/O registers
I/O registers
DA2 DA1 DA0
UNC Idnf Abrt
Command block registers
Logical Interface
DEV HS3 HS2 HS1 HS0
DSC DRQ ERR
BSY
Interface
Host Commands
Control block registers
Srst
Command code and parameters 1
Command code and parameters
Command code and parameters 2
Command descriptions
Host Commands
Read Multiple X’C4’
Host Commands
Execution example of Read Multiple command
Host Commands
Interface
End head No. /LBA MSB
1F7 HCM 1F6 HDH
Write Multiple X’C5’
Interface
Write Verify X’3C’
Interface
Host Commands
Initialize Device Parameters X’91’
Identify Device X’EC’
Information to be read by Identify Device command 1
Information to be read by Identify Device command 2
Information to be read by Identify Device command 3
Information to be read by Identify Device command 4
Information to be read by Identify Device command 5
Information to be read by Identify Device command 6
Information to be read by Identify Device command 7
Identify Device DMA X’EE’
Information to be read by Identify Device command 8
’BB’
SET Features X’EF’
Features register values and settable modes
’AA’
Host Commands
SET Multiple Mode X’C6’
Host Commands
SET MAX Address F9
Read Native MAX Address F8
Execute Device Diagnostic X’90’
Diagnostic code
Interface
Host Commands
Write Buffer X’E8’
Host Commands
Interface
Host Commands
Interface
Host Commands
’FF’
Host Commands
Features Register values subcommands and functions 1
Features Register values subcommands and functions 2
’DA’
Features Register values subcommands and functions 3
Host Commands
Format of device attribute value data
1FF
Format of insurance failure threshold value data
Host Commands
Interface
Host Commands
10 Smart error log data format 1/2
10 Smart error log data format 2/2
1FC
11 Smart self test log data format
Host Commands
12 Contents of security password
At command issuance I-O register contents 1F7 hCM
Interface
Read DMA Write DMA
13 Contents of Security SET Password data
1F5 hCH 1F4 hCL 1F3 hSN 1F2 hSC 1F1 hER Error information
Flush Cache E7
15 Command code and parameters 1
Error posting
15 Command code and parameters 2
Command Protocol
Data transferring commands from device to host
Execute Device Diagnostic Initialize Device Parameters
Read Sectors command protocol
Protocol for command abort
Data transferring commands from host to device
Write Sectors command protocol
Commands without data transfer
Other commands
DMA data transfer commands
Read Multiple Sleep Write Multiple
Normal DMA data transfer
Overview
Ultra DMA Feature Set
Ultra DMA burst initiation phase
Phases of operation
Ultra DMA burst termination phase
Data transfer phase
Initiating an Ultra DMA data in burst
Ultra DMA data in commands
Data in transfer
Pausing an Ultra DMA data in burst
Terminating an Ultra DMA data in burst
Interface
Ultra DMA Feature Set
Ultra DMA data out commands
Initiating an Ultra DMA data out burst
Data out transfer
Pausing an Ultra DMA data out burst
Terminating an Ultra DMA data out burst
Ultra DMA Feature Set
Ultra DMA CRC rules
CRCIN8 = f XOR f CRCIN1=f CRCIN9 = f CRCIN2=f
17 Recommended series termination for Ultra DMA
Series termination required for Ultra DMA
PIO data transfer
Timing
10 Data transfer timing
Multiword DMA data transfer
11 Multiword DMA data transfer timing mode
Starting of Ultra DMA data In Burst
Transfer of Ultra DMA data
C141-E088-01EN 105
18 Ultra DMA data burst timing requirements 2
13 Sustained Ultra DMA data in burst
Sustained Ultra DMA data in burst
14 Host pausing an Ultra DMA data in burst
Host pausing an Ultra DMA data in burst
15 Device terminating an Ultra DMA data in burst
Device terminating an Ultra DMA data in burst
16 Host terminating an Ultra DMA data in burst
Host terminating an Ultra DMA data in burst
17 Initiating an Ultra DMA data out burst
18 Sustained Ultra DMA data out burst
Sustained Ultra DMA data out burst
19 Device pausing an Ultra DMA data out burst
Device pausing an Ultra DMA data out burst
20 Host terminating an Ultra DMA data out burst
Host terminating an Ultra DMA data out burst
21 Device terminating an Ultra DMA data out burst
22 Power on Reset Timing
Power-on and reset
Operations
Response to power-on
Device Response to the Reset
Response to power-on
Response to hardware reset
Response to hardware reset
Response to software reset
Response to software reset
Response to diagnostic command
Response to diagnostic command
Default parameters
Default parameters
Address Translation
Logical address
Address translation example in CHS mode
Power save mode
Power Save
Operations
Defect Management
Power commands
Alternating defective sectors
Spare area
Alternate cylinder assignment
Data buffer configuration
Read-Ahead Cache
Caching operation
Read Sector S Read Multiple Read DMA
− Write Sectors − Write DMA − Write Multiple
− Read Sector S − Read DMA
Mis-hit no hit
Usage of read segment
Sequential read
Mis-hit data Empty area
Read-ahead data New read-ahead data Hit data
Full hit hit all
HAP
DAP
Partially hit
Write Cache
Write Sectors Write Multiple Write DMA
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Glossary
Positioning
Power save mode
Rotational delay
PIO Programmed input-output
VCM
Status
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Acronyms and Abbreviations
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Index
Identify Device 5-31 Identify Device DMA 5-39 Idle
Index
Read DMA Read Long 5-48 Read Multiple 5-18 Read Sectors 5-16
MPU Mtbf Mttr
Write Sectors command protocol
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Japan
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MHJ2181AT, MHK2120AT, MHK2090AT, MHK2060AT Disk
Drives Product Manual
C141-E088-01EN
