Fujitsu MHA2021AT Manuale utente

C141-E042-01EN

MHA2021AT, MHA2032AT

DISK DRIVES

PRODUCT MANUAL

C141-E042-01EN

FOR SAFE OPERATION

Handling of This Manual

This manual contains important information for using this product. Read thoroughly before using

the product. Use this product only after thoroughly reading and understanding especially the

section “Important Alert Items” in this manual. Keep this manual handy, and keep it carefully.

FUJITSU makes every effort to prevent users and bystanders from being injured or from suffering

damage to their property. Use the product according to this manual.

IMPORTANT NOTE TO USERS

READ THE ENTIRE MANUAL CAREFULLY BEFORE USING THIS PRODUCT.

INCORRECT USE OF THE PRODUCT MAY RESULT IN INJURY OR DAMAGE TO

USERS, BYSTANDERS OR PROPERTY.

While FUJITSU has sought to ensure the accuracy of all information in this manual, FUJITSU

assumes no liability to any party for any damage caused by any error or omission contained in this

manual, its updates or supplements, whether such errors or omissions result from negligence,

accident, or any other cause. In addition, FUJITSU assumes no liability with respect to the

application or use of any product or system in accordance with the descriptions or instructions

contained herein; including any liability for incidental or consequential damages arising therefrom.

FUJITSU DISCLAIMS ALL WARRANTIES REGARDING THE INFORMATION

CONTAINED HEREIN, WHETHER EXPRESSED, IMPLIED, OR STATUTORY.

FUJITSU reserves the right to make changes to any products described herein without further

notice and without obligation.

The contents of this manual may be revised without prior notice.

The contents of this manual shall not be disclosed in any way or reproduced in any media without

the express written permission of Fujitsu Limited.

C141-E042-01EN

Revision History

(1/1)

Edition Date Revised section (*1)

(Added/Deleted/Altered) Details

01 1997-07-15 — —

*1 Section(s) with asterisk (*) refer to the previous edition when those were deleted.

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.

Preface

ii C141-E042-01EN

Abbreviation

This section gives the meanings of the definitions used in this manual.

Conventions for Alert Messages

This manual uses the following conventions to show the alert messages. An alert

message consists of an alert signal and alert statements. The alert signal consists

of an alert symbol and a signal word or just a signal word.

The following are the alert signals and their meanings:

This indicates a hazarous situation could result in

minor or moderate personal injury if the user does

not perform the procedure correctly. This alert

signal also indicates that damages to the product or

other property, may occur if the user does not

perform the procedure correctly.

This indicates information that could help the user

use the product more efficiently.

In the text, the alert signal is centered, followed below by the indented message. A

wider line space precedes and follows the alert message to show where the alert

message begins and ends. The following is an example:

(Example)

Data corruption: Avoid mounting the disk drive near strong

magnetic sources such as loud speakers. Ensure that the disk drive is

not affected by external magnetic fields.

The main alert messages in the text are also listed in the “Important Alert Items.”

Operating Environment

This product is designed to be used in offices or computer rooms.

For details regarding the operating environment of use, refer to the

(Cnnn-Xnnn) and the

(Cnnn-Xnnn).

Attention

Please forward any comments you may have regarding this manual.

Preface

C141-E042-01EN iii

To make this manual easier for users to understand, opinions from readers are

needed. Please write your opinions or requests on the Comment at the back of this

manual and forward it to the address described in the sheet.

Liability Exception

“Disk drive defects” refers to defects that involve adjustment, repair, or

replacement.

Fujitsu is not liable for any other disk drive defects, such as those caused by user

misoperation or mishandling, inappropriate operating environments, defects in the

power supply or cable, problems of the host system, or other causes outside the

disk drive.

C141-E042-01EN v

Important Alert Items

Important Alert Messages

The important alert messages in this manual are as follows:

A hazardous situation could result in minor or moderate personal

injury if the user does not perform the procedure correctly. Also,

damage to the predate or other property, may occur if the user does

not perform the procedure correctly.

Task Alert message Page

Normal Operation Data corruption: Avoid mounting the disk near strong

magnetic soures such as loud speakers. Ensure that the disk

drive is not affected by extrnal magnetic fields.

3-6

C141-E042-01EN vii

Contents

CHAPTER 1 Device Overview .......................................................................1-1

1.1 Features 1-2

1.1.1 Functions and performance 1-2

1.1.2 Adaptability 1-2

1.1.3 Interface 1-2

1.2 Device Specifications 1-4

1.2.1 Specifications summary 1-4

1.2.2 Model and product number 1-5

1.3 Power Requirements 1-5

1.4 Environmental Specifications 1-7

1.5 Acoustic Noise 1-7

1.6 Shock and Vibration 1-8

1.7 Reliability 1-8

1.8 Error Rate 1-9

1.9 Media Defects 1-9

CHAPTER 2 Device Configuration................................................................2-1

2.1 Device Configuration 2-2

2.2 System Configuration 2-4

2.2.1 ATA interface 2-4

2.2.2 1 drive connection 2-4

2.2.3 2 drives connection 2-5

Contents

viii C141-E042-01EN

CHAPTER 3 Installation Conditions..............................................................3-1

3.1 Dimensions 3-2

3.2 Mounting 3-3

3.3 Cable Connections 3-7

3.3.1 Device connector 3-7

3.3.2 Cable connector specifications 3-8

3.3.3 Device connection 3-8

3.3.4 Power supply connector (CN1) 3-9

3.4 Jumper Settings 3-9

3.4.1 Location of setting jumpers 3-9

3.4.2 Factory default setting 3-10

3.4.3 Master drive-slave drive setting 3-10

3.4.4 CSEL setting 3-11

CHAPTER 4 Theory of Device Operation......................................................4-1

4.1 Outline 4-2

4.2 Subassemblies 4-2

4.2.1 Disk 4-2

4.2.2 Head 4-2

4.2.3 Spindle 4-3

4.2.4 Actuator 4-3

4.2.5 Air filter 4-3

4.3 Circuit Configuration 4-4

4.4 Power-on Sequence 4-6

4.5 Self-calibration 4-7

4.5.1 Self-calibration contents 4-7

4.5.2 Execution timing of self-calibration 4-8

4.5.3 Command processing during self-calibration 4-9

4.6 Read/write Circuit 4-9

4.6.1 Read/write preamplifier (PreAMP) 4-9

4.6.2 Write circuit 4-10

Contents

C141-E042-01EN ix

4.6.3 Read circuit 4-12

4.6.4 Time base generator circuit 4-13

4.7 Servo Control 4-14

4.7.1 Servo control circuit 4-14

4.7.2 Data-surface servo format 4-18

4.7.3 Servo frame format 4-18

4.7.4 Actuator motor control 4-19

4.7.5 Spindle motor control 4-20

CHAPTER 5 Interface..................................................................................... 5-1

5.1 Physical Interface 5-2

5.1.1 Interface signals 5-2

5.1.2 Signal assignment on the connector 5-2

5.2 Logical Interface 5-6

5.2.1 I/O registers 5-6

5.2.2 Command block registers 5-8

5.2.3 Control block registers 5-13

5.3 Host Commands 5-13

5.3.1 Command code and parameters 5-14

5.3.2 Command descriptions 5-16

5.3.3 Error posting 5-67

5.4 Command Protocol 5-69

5.4.1 Data transferring commands from device to host 5-69

5.4.2 Data transferring commands from host to device 5-71

5.4.3 Commands without data transfer 5-73

5.4.4 Other commands 5-74

5.4.5 DMA data transfer commands 5-74

5.5 Timing 5-76

5.5.1 PIO data transfer 5-76

5.5.2 Single word DMA data transfer 5-78

5.5.3 Multiword DMA data transfer 5-79

5.5.4 Power-on and reset 5-79

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