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MHD2032AT, MHC2032AT, MHD2021AT, MHC2040AT manual
Models:
MHC2040AT
MHC2032AT
MHD2032AT
MHD2021AT
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219 pages
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Specifications
Install
Dimension
Device Configuration
Power-on and reset
Diagnostic code
Command block registers
Error Rate
Rotational delay
Interface signals
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Image 11
Page 10
Page 12
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Page 10
Page 12
Contents
Disk Drives Product Manual
MHC2032AT, MHC2040AT MHD2032AT, MHD2021AT
Handling of This Manual
For Safe Operation
Page
Revision History
Page
Overview of Manual
Preface
Operating Environment
Conventions for Alert Messages
Liability Exception
Page
Important Alert Messages
Important Alert Items
Page
Contents
Contents
Interface
Contents
GL-1
Figures
Illustrations
Tables
Surface temperature measurement points and standard values
Device Overview
Adaptability
Features
Functions and performance
Features
MHC2032AT MHC2040AT
Device Specifications
Specifications summary
Specifications MHC2032AT/MHC2040AT
MHD2021AT MHD2032AT
Specifications MHD2021AT/MHD2032AT
MHD2021AT
Power Requirements
Model and product number
MHC2032AT
Current fluctuation Typ. at +5V when power is turned on
Current and power dissipation
Acoustic Noise
Environmental Specifications
Environmental specifications
Acoustic noise specification
Shock and Vibration
Media Defects
Error Rate
Device Configuration
Disk drive outerview the MHC Series and MHD Series
Device Configuration
Configuration of disk media heads
2 1 drive connection
System Configuration
ATA interface
3 2 drives connection
2 drives configuration
Page
Installation Conditions
Dimensions MHC series 1/2
Dimensions
Dimensions MHD series 2/2
Orientation Sample MHC2040AT
Mounting
Mounting frame structure
PCA
Measurement point Temperature
Service area Sample MHC2040AT
Cable Connections
Device connector
Berg
Cable connector specifications
Cable connector specifications
Device connection
Location of setting jumpers
Jumper Settings
Power supply connector CN1
Master drive-slave drive setting
Factory default setting
13 Example 1 of Cable Select
12 Csel setting
14 Example 2 of Cable Select
Page
Theory of Device Operation
Head
Outline
Subassemblies
Disk
Air filter
Spindle
Actuator
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
Page
Interface
Physical Interface
Interface signals
Dasp GND
Signal assignment on the connector
Signal assignment on the interface connector
Dior
Encsel
Diow
Stop
Ddmardy
Dasp
Iordy
Dmarq
Logical Interface
DA2 DA1 DA0
1 I/O registers
I/O registers
UNC Idnf Abrt
Command block registers
Logical Interface
DEV HS3 HS2 HS1 HS0
DSC DRQ ERR
BSY
Interface
Srst
Host Commands
Control block registers
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
Number of current Cylinders
Information to be read by Identify Device command 2
Command Bit Reserved Multiple sector transfer =Enable
Information to be read by Identify Device command 3
Identify Device DMA X’EE’
’BB’
SET Features X’EF’
Features register values and settable modes
’AA’
Host Commands
SET Multiple Mode X’C6’
Host Commands
Execute Device Diagnostic X’90’
Diagnostic code
Interface
Host Commands
Write Buffer X’E8’
Host Commands
Interface
Host Commands
Interface
Host Commands
’FF’
’FF’
Host Commands
Features Register values subcommands and functions
Features Resister Function
1FF
Format of device attribute value data
Format of insurance failure threshold value data
Interface
Host Commands
Interface
10 Contents of security password
At command issuance I-O register contents 1F7 hCM
Host Commands
Read DMA Write DMA
11 Contents of Security SET Password data
Security Unlock
Locked Mode
Flush Cache E7
13 Command code and parameters 1
Error posting
13 Command code and parameters 2
Execute Device Diagnostic Initialize Device Parameters
Command Protocol
Data transferring commands from device to host
Read Sectors command protocol
Protocol for command abort
Data transferring commands from host to device
Write Sectors command protocol
Commands without data transfer
Read Multiple Sleep Write Multiple
Other commands
DMA data transfer commands
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
Dmarq
Terminating an Ultra DMA data in burst
Ultra DMA Feature Set
Interface
Data out transfer
Ultra DMA data out commands
Initiating an Ultra DMA data out burst
Pausing an Ultra DMA data out burst
Terminating an Ultra DMA data out burst
Interface
Ultra DMA CRC rules
XOR f11
15 Recommended series termination for Ultra DMA
Series termination required for Ultra DMA
PIO data transfer
Timing
10 Data transfer timing
Single word DMA data transfer
11 Single word DMA data transfer timing mode
Multiword DMA data transfer
12 Multiword DMA data transfer timing mode
Starting of Ultra DMA data In Burst
Transfer of Ultra DMA data
Name Mode Comment MIN MAX
Dmardy
16 Ultra DMA data burst timing requirements 2
14 Sustained Ultra DMA data in burst
Sustained Ultra DMA data in burst
15 Host pausing an Ultra DMA data in burst
Host pausing an Ultra DMA data in burst
16 Device terminating an Ultra DMA data in burst
Device terminating an Ultra DMA data in burst
17 Host terminating an Ultra DMA data in burst
Host terminating an Ultra DMA data in burst
18 Initiating an Ultra DMA data out burst
19 Sustained Ultra DMA data out burst
Sustained Ultra DMA data out burst
20 Device pausing an Ultra DMA data out burst
Device pausing an Ultra DMA data out burst
21 Host terminating an Ultra DMA data out burst
Host terminating an Ultra DMA data out burst
22 Device terminating an Ultra DMA data out burst
23 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
Address Translation
Default parameters
Default parameters
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
Caching operation
Data buffer configuration
Read-Ahead Cache
− Read Sector S − Read DMA
Read Sector S Read Multiple Read DMA
− Write Sectors − Write DMA − Write Multiple
Mis-hit no hit
Usage of read segment
Sequential read
DAP
HAP
Read-ahead data New read-ahead data Hit data
Full hit hit all
Partially hit
Write Cache
Write Sectors Write Multiple
Page
Glossary
Positioning
Power save mode
Rotational delay
PIO Programmed input-output
VCM
Status
Page
Acronyms and Abbreviations
Page
Index
DAC
Index
Initialize Device Parameters
Read DMA Read Long 5-43 Read Multiple 5-18 Read Sectors
MPU Mtbf Mttr
SET Features
IN-6 C141-E050-02EN
Page
Japan
Comment Form
MHC2032AT, MHC2040AT, MHD2032AT, MHD2021AT Disk
Drives Product Manual
