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MHC2040AT, MHC2032AT, MHD2021AT, MHD2032AT manual Response to power-on
Models:
MHC2040AT
MHC2032AT
MHD2032AT
MHD2021AT
1
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Specifications
Install
Dimension
Device Configuration
Power-on and reset
Diagnostic code
Command block registers
Error Rate
Rotational delay
Interface signals
Page 182
Image 182
6.1 Device Response to the Reset
31 sec.
30 sec.
Figure 6.1 Response to
power-on
C141-E050-02EN
6-3
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Image 182
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Contents
MHC2032AT, MHC2040AT MHD2032AT, MHD2021AT
Disk Drives Product Manual
For Safe Operation
Handling of This Manual
Page
Revision History
Page
Preface
Overview of Manual
Conventions for Alert Messages
Operating Environment
Liability Exception
Page
Important Alert Items
Important Alert Messages
Page
Contents
Contents
Interface
Contents
GL-1
Illustrations
Figures
Tables
Surface temperature measurement points and standard values
Device Overview
Adaptability
Features
Functions and performance
Features
Specifications MHC2032AT/MHC2040AT
Device Specifications
Specifications summary
MHC2032AT MHC2040AT
Specifications MHD2021AT/MHD2032AT
MHD2021AT MHD2032AT
MHC2032AT
Power Requirements
Model and product number
MHD2021AT
Current and power dissipation
Current fluctuation Typ. at +5V when power is turned on
Acoustic noise specification
Environmental Specifications
Environmental specifications
Acoustic Noise
Shock and Vibration
Error Rate
Media Defects
Device Configuration
Device Configuration
Disk drive outerview the MHC Series and MHD Series
Configuration of disk media heads
2 1 drive connection
System Configuration
ATA interface
2 drives configuration
3 2 drives connection
Page
Installation Conditions
Dimensions
Dimensions MHC series 1/2
Dimensions MHD series 2/2
Mounting
Orientation Sample MHC2040AT
PCA
Mounting frame structure
Measurement point Temperature
Service area Sample MHC2040AT
Device connector
Cable Connections
Device connection
Cable connector specifications
Cable connector specifications
Berg
Location of setting jumpers
Jumper Settings
Power supply connector CN1
Factory default setting
Master drive-slave drive setting
12 Csel setting
13 Example 1 of Cable Select
14 Example 2 of Cable Select
Page
Theory of Device Operation
Disk
Outline
Subassemblies
Head
Air filter
Spindle
Actuator
Circuit Configuration
Circuit Configuration
Power-on Sequence
Self-calibration contents
Self-calibration
Execution timing of self-calibration
Read/write Circuit
Command processing during self-calibration
Self-calibration execution timechart
Read/write preamplifier PreAMP
Write circuit
Write precompensation algorithm
Read/write circuit block diagram
Frequency characteristic of programmable filter
Read circuit
Digital PLL circuit
Servo Control
Servo control circuit
Servo Control
Physical sector servo configuration on disk surface
Servo Control
Data-surface servo format
Servo frame format
Actuator motor control
Spindle motor control
Servo Control
Page
Interface
Interface signals
Physical Interface
Dasp GND
Signal assignment on the connector
Signal assignment on the interface connector
Stop
Encsel
Diow
Dior
Ddmardy
Dasp
Iordy
Logical Interface
Dmarq
DA2 DA1 DA0
1 I/O registers
I/O registers
Command block registers
UNC Idnf Abrt
Logical Interface
DEV HS3 HS2 HS1 HS0
BSY
DSC DRQ ERR
Interface
Srst
Host Commands
Control block registers
Command code and parameters
Command code and parameters 1
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’
’AA’
SET Features X’EF’
Features register values and settable modes
’BB’
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
Format of device attribute value data
1FF
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
Locked Mode
Security Unlock
Flush Cache E7
Error posting
13 Command code and parameters 1
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
Data transferring commands from host to device
Protocol for command abort
Write Sectors command protocol
Commands without data transfer
Read Multiple Sleep Write Multiple
Other commands
DMA data transfer commands
Normal DMA data transfer
Ultra DMA Feature Set
Overview
Phases of operation
Ultra DMA burst initiation phase
Data transfer phase
Ultra DMA burst termination phase
Ultra DMA data in commands
Initiating an Ultra DMA data in burst
Pausing an Ultra DMA data in burst
Data in transfer
Terminating an Ultra DMA data in burst
Dmarq
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
Series termination required for Ultra DMA
15 Recommended series termination for Ultra DMA
Timing
PIO data transfer
10 Data transfer timing
11 Single word DMA data transfer timing mode
Single word DMA data transfer
12 Multiword DMA data transfer timing mode
Multiword DMA data transfer
Transfer of Ultra DMA data
Starting of Ultra DMA data In Burst
Name Mode Comment MIN MAX
16 Ultra DMA data burst timing requirements 2
Dmardy
Sustained Ultra DMA data in burst
14 Sustained Ultra DMA data in burst
Host pausing an Ultra DMA data in burst
15 Host pausing an Ultra DMA data in burst
Device terminating an Ultra DMA data in burst
16 Device terminating an Ultra DMA data in burst
Host terminating an Ultra DMA data in burst
17 Host terminating an Ultra DMA data in burst
18 Initiating an Ultra DMA data out burst
Sustained Ultra DMA data out burst
19 Sustained Ultra DMA data out burst
Device pausing an Ultra DMA data out burst
20 Device pausing an Ultra DMA data out burst
Host terminating an Ultra DMA data out burst
21 Host terminating an Ultra DMA data out burst
22 Device terminating an Ultra DMA data out burst
Power-on and reset
23 Power on Reset Timing
Operations
Device Response to the Reset
Response to power-on
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
Address translation example in CHS mode
Logical address
Power Save
Power save mode
Operations
Power commands
Defect Management
Spare area
Alternating defective sectors
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
Usage of read segment
Mis-hit no hit
Sequential read
HAP
DAP
Read-ahead data New read-ahead data Hit data
Full hit hit all
Partially hit
Write Cache
Write Sectors Write Multiple
Page
Glossary
PIO Programmed input-output
Power save mode
Rotational delay
Positioning
Status
VCM
Page
Acronyms and Abbreviations
Page
Index
Index
DAC
Initialize Device Parameters
MPU Mtbf Mttr
Read DMA Read Long 5-43 Read Multiple 5-18 Read Sectors
SET Features
IN-6 C141-E050-02EN
Page
Drives Product Manual
Comment Form
MHC2032AT, MHC2040AT, MHD2032AT, MHD2021AT Disk
Japan
