Fujitsu MHA2021AT, MHA2032AT Preface

C141-E042-01EN i

Preface

This manual describes the MHA2021AT and MHA2032AT, 2.5-inch hard disk

drives. These drives have a built-in controller that is compatible with the ATA

interface.

This manual describes the specifications and functions of the drives and explains

in detail how to incorporate the drives into user systems. This manual assumes

that the reader has a basic knowledge of hard disk drives and their implementations

in computer systems.

This manual consists of seven chapters and sections explaining the special

terminology and abbreviations used in this manual:

Overview of Manual

CHAPTER 1 Drive Overview

This chapter gives an overview of the MHA2021AT and MHA2032AT and

describes their features.

CHAPTER 2 Drive Configuration

This chapter describes the internal configurations of the MHA2021AT and

MHA2032AT and the configuration of the systems in which they operate.

CHAPTER 3 Drive Installation

This chapter describes the external dimensions, installation conditions, and switch

settings of the MHA2021AT and MHA2032AT.

CHAPTER 4 Theory of Drive Operation

This chapter describes the operation theory of the MHA2021AT and

MHA2032AT.

CHAPTER 5 Interface Specifications

This chapter describes the interface specifications of the MHA2021AT and

MHA2032AT.

CHAPTER 6 Interface Operations

This chapter describes the operations of the MHA2021AT and MHA2032AT.

CHAPTER 7 Miscellaneous

This chapter describes how to reformat the MHA2021AT and MHA2032AT.

Terminology

This section explains the special terminology used in this manual.

Contents

Main FOR SAFE OPERATION Page Preface Overview of Manual Conventions for Alert Messages Operating Environment Attention Liability Exception Important Alert Items Important Alert Messages 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 Page Page Illustrations Figures Tables Page CHAPTER 1 Device Overview 1.1 Features 1.1.1 Functions and performance 1.1.2 Adaptability 1.1.3 Interface Page 1.2 Device Specifications 1.2.1 Specifications summary 1.2.2 Model and product number 1.3 Power Requirements Page 1.4 Environmental Specifications 1.5 Acoustic Noise 1.6 Shock and Vibration 1.7 Reliability 1.8 Error Rate 1.9 Media Defects Page 2.1 Device Configuration Page 2.2 System Configuration 2.2.1 ATA interface 2.2.2 1 drive connection 2.2.3 2 drives connection Page Page Page Page Page Page 3.3 Cable Connections 3.3.1 Device connector 3.3.2 Cable connector specifications 3.3.3 Device connection 3.4 Jumper Settings Page 3.4.4 CSEL setting Page CHAPTER 4 Theory of Device Operation 4.1 Outline 4.2 Subassemblies 4.2.1 Disk 4.2.2 Head Page 4.3 Circuit Configuration Page 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 Page 4.6.3 Read circuit 4.6.4 Time base generator circuit 4.7 Servo Control 4.7.1 Servo control circuit Page Page Page 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 Page Page Page Page Page Page 5.2 Logical Interface 5.2.1 I/O registers Page 5.2.2 Command block registers Page Page Page Page 5.2.3 Control block registers 5.3 Host Commands 5.3.1 Command code and parameters Page 5.3.2 Command descriptions Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page 5.3.3 Error posting Page 5.4 Command Protocol 5.4.1 Data transferring commands from device to host Page 5.4.2 Data transferring commands from host to device Page 5.4.3 Commands without data transfer 5.4.4 Other commands 5.4.5 DMA data transfer commands Page Page Page Page Page Page Page 6.1 Device Response to the Reset 6.1.1 Response to power-on Page 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 Page 6.3.2 Power commands 6.4 Defect Management 6.4.1 Spare area 6.4.2 Alternating defective sectors Page 6.5 Read-Ahead Cache 6.5.1 Data buffer configuration 6.5.2 Caching operation Page 6.5.3 Usage of read segment Page Page Page Page Page 6.6 Write Cache Page Glossary Page Page Acronyms and Abbreviations Index Page Page Page Page Page Comment Form