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Fujitsu
MHE2043AT, MHE2064AT, MHF2021AT, MHF2043AT
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225 pages, 2.19 Mb
4.6 Read/write Circuit
C141-E057-01EN
4-
11
Figure 4.4
Read/write circuit block diagram
Contents
Main
FOR SAFE OPERATION
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Preface
Overview of Manual
Conventions for Alert Messages
Operating Environment
Attention
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Important Alert Items
Important Alert Messages
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Manual Organization
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Contents
CHAPTER 1 Device Overview........................................................................1-1
CHAPTER 2 Device Configuration................................................................ 2-1
CHAPTER 3 Installation Conditions..............................................................3-1
CHAPTER 4 Theory of Device Operation......................................................4-1
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Illustrations
Figures
Tables
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CHAPTER 1 Device Overview
1.1 Features
1.1.1 Functions and performance
1.1.2 Adaptability
1.1.3 Interface
1.2 Device Specifications
1.2.1 Specifications summary
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1.2.2 Model and product number
1.3 Power Requirements
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1.4 Environmental Specifications
1.5 Acoustic Noise
1.6 Shock and Vibration
1.7 Reliability
1.8 Error Rate
1.9 Media Defects
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2.1 Device Configuration
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2.2 System Configuration
2.2.1 ATA interface
2.2.2 1 drive connection
2.2.3 2 drives connection
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3.2 Mounting
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3.3 Cable Connections
3.3.1 Device connector
3.3.2 Cable connector specifications
3.3.3 Device connection
3.4 Jumper Settings
3.4.2 Factory default setting
3.4.3 Master drive-slave drive setting
3.4.4 CSEL setting
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CHAPTER 4 Theory of Device Operation
4.1 Outline
4.2 Subassemblies
4.2.1 Disk
4.2.2 Head
4.2.3 Spindle
4.2.4 Actuator
4.2.5 Air filter
4.3 Circuit Configuration
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4.4 Power-on Sequence
4.5 Self-calibration
4.5.1 Self-calibration contents
4.5.2 Execution timing of self-calibration
4.5.3 Command processing during self-calibration
4.6 Read/write Circuit
4.6.1 Read/write preamplifier (PreAMP)
4.6.2 Write circuit
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4.6.3 Read circuit
4.6.4 Digital PLL circuit
4.7 Servo Control
4.7.1 Servo control circuit
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4.7.2 Data-surface servo format
4.7.3 Servo frame format
4.7.4 Actuator motor control
4.7.5 Spindle motor control
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CHAPTER 5 Interface
5.1 Physical Interface
5.1.1 Interface signals
5.1.2 Signal assignment on the connector
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5.2 Logical Interface
5.2.1 I/O registers
5.2.2 Command block registers
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5.2.3 Control block registers
5.3 Host Commands
5.3.1 Command code and parameters
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5.3.2 Command descriptions
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5.3.3 Error posting
Interface
5-72 C141-E057-01EN
Table 5.13 Command code and parameters (2 of 2)
SMART
SECURITY DISABLE PASSWORD
5.4 Command Protocol
5.4.1 Data transferring commands from device to host
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5.4.2 Data transferring commands from host to device
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5.4.3 Commands without data transfer
5.4.4 Other commands
5.4.5 DMA data transfer commands
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5.5 Ultra DMA Feature Set
5.5.1 Overview
5.5.2 Phases of operation
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5.5.3 Ultra DMA data in commands
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5.5.4 Ultra DMA data out commands
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5.5.6 Series termination required for Ultra DMA
IORDY
DMARQ
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5.6.4 Transfer of Ultra DMA data
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5.6.5 Power-on and reset
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6.1 Device Response to the Reset
6.1.1 Response to power-on
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6.1.2 Response to hardware reset
6.1.3 Response to software reset
6.1.4 Response to diagnostic command
6.2 Address Translation
6.2.1 Default parameters
6.2.2 Logical address
6.3 Power Save
6.3.1 Power save mode
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6.3.2 Power commands
6.4 Defect Management
6.4.1 Spare area
6.4.2 Alternating defective sectors
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6.5 Read-Ahead Cache
6.5.1 Data buffer configuration
6.5.2 Caching operation
6.5.3 Usage of read segment
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6.6 Write Cache
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Glossary
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Acronyms and Abbreviations
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Index
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