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MHA2032AT, MHA2021AT
manual
Timing, PIO data transfer
Models:
MHA2032AT
MHA2021AT
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Specifications
Install
Interface signals
Error Rate
Rotational delay
Dimension
Device Configuration
Power-on and reset
Diagnostic code
Command block registers
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Interface
5.5 Timing
5.5.1 PIO data transfer
Figure 5.8 shows of the data transfer timing between the device and the host system.
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C141-E042-01EN
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Contents
Disk Drives Product Manual
MHA2021AT, MHA2032AT
Handling of This Manual
For Safe Operation
Revision History
Overview of Manual
Preface
Abbreviation
Conventions for Alert Messages
Operating Environment
Liability Exception
Important Alert Messages
Important Alert Items
Contents
Contents
Interface
IN-1
GL-1
AB-1
Figures
Illustrations
Tables
C141-E042-01EN Xiii
Device Overview
Functions and performance
Features
Adaptability
Interface
Features
Specifications summary
Device Specifications
Specifications
MHA2021AT MHA2032AT
Model and product number
Power Requirements
MHA2021AT
Model names and product numbers
Current fluctuation Typ. at +5V when power is turned on
Current and power dissipation
Environmental specifications
Environmental Specifications
Acoustic noise specification
Acoustic Noise
Shock and Vibration
Shock and vibration specification
Reliability
MTBF=
Media Defects
Error Rate
Device Configuration
Disk drive outerview
Device Configuration
MHA2021ATMHA2032AT
2 1 drive connection
System Configuration
ATA interface
3 2 drives connection
2 drives configuration
Installation Conditions
Dimensions
Dimensions
Orientation
Mounting
Mounting frame structure
PCA
Measurement point Temperature DE cover
Service area
Cable Connections
Device connector
Cable connector specifications
Cable connector specifications
Device connection
Berg
Location of setting jumpers
Jumper Settings
Power supply connector CN1
Master drive-slave drive setting
Factory default setting
13 Example 1 of Cable Select
Csel setting
14 Example 2 of Cable Select
Theory of Device Operation
Subassemblies
Outline
Disk
Head
Air filter
Spindle
Actuator
Circuit Configuration
Circuit Configuration
Power-on Sequence
Self-calibration
Self-calibration contents
Execution timing of self-calibration
Self-calibration execution timechart
Command processing during self-calibration
Read/write Circuit
Read/write preamplifier PreAMP
Write precompensation algorithm
Write circuit
Read/write circuit block diagram
Read circuit
Frequency characteristic of programmable filter
Write clock freqeuncy and recording density BPI of each zone
Time base generator 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
Interface
Physical Interface
Interface signals
Signal assignment on the connector
Encsel
Signal assignment on the interface connector
Dasp GND
MSTR, I, Master/slave setting
Dasp
Pidag
1 I/O registers
Logical Interface
DA2 DA1 DA0
I/O registers
Icrc UNC
Command block registers
Logical Interface
DEV HS3 HS2 HS1 HS0
ERR
BSY
DSC DRQ
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’
MSB
Host Commands
Execution example of Read Multiple command
Host Commands
Interface
Host Commands
1F7 HCM 1F6 HDH Start head No. /LBA
Write Multiple X’C5’
Start head No. /LBA
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
Word Value Description
Information to be read by Identify Device Command 2
Host Commands
Information to be read by Identify Device Command 3
Identify Device DMA X’EE’
Features register values and settable modes
SET Features X’EF’
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
’97’ or X’E3’
’95’ or X’E1’
’96’ or X’E2’
At command issuance I/O registers setting contents 1F7 HCM
’FF’
’98’ or X’E5’
Features Register values subcommands and functions
Smart Return Status
1FF
Format of device attribute value data
Format of insurance failure threshold value data
Interface
10 Contents of security password
Interface
Host Commands
Interface
∙ Read Sectors ∙ Write Sectors ∙ Write Vetif
11 Contents of Security SET Password data
Cancel Locked Mode
Interface
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
Protocol for the command execution without data transfer
Commands without data transfer
DMA data transfer commands
Other commands
Read Multiple Sleep Write Multiple
Read DMA Write DMA
Normal DMA data transfer
PIO data transfer
Timing
Data transfer timing
Single word DMA data transfer
Single word DMA data transfer timing mode
Multiword DMA data transfer
Power-on and reset
11 Power on Reset Timing
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
Usage of read segment
Following shows the cache enabled data for next read command
DAP
HAP
Read-ahead data New read-ahead data Hit data
Finally, the cache data in the buffer is as follows
Last LBA
Write Cache
Write Cache
Glossary
Rotational delay
Power save mode
PIO Programmed input-output
Positioning
VCM
Status
Acronyms and Abbreviations
Index
Index
Initialize Device Parameters
Index
SET Features
IN-6 C141-E042-01EN
Japan
Comment Form
MHA2021AT, MHA2032AT Disk Drives Product Manual
C141-E042-01EN
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