Fujitsu MHW2120BS manuals

Fujitsu MHW2120BS User Manual (296 pages)

Brand: Fujitsu | Category: Hardware | Size: 6.64 MB |

English

Table of contents

FOR SAFE OPERATION

2

Revision History

3

Preface

5

Operating Environment

6

Conventions

6

Attention

7

Liability Exception

7

Important Alert Items

9

Manual Organization

11

Contents

13

Illustrations

19

CHAPTER 1 Device Overview

23

1.1 Features

24

1.1.3 Interface

25

1.2 Device Specifications

26

• + 5 V ± 5 %

28

1.5 Acoustic Noise

32

1.6 Shock and Vibration

32

1.7 Reliability

33

1.8 Error Rate

34

1.9 Media Defects

34

1.10 Load/Unload Function

34

2.1 Device Configuration

40

2.2 System Configuration

41

3.1 Dimensions

44

•m (5kgf•cm)

45

Mounting screw hole

49

Cable connection

49

3.3.1 Device connector

51

4.1 Outline

56

4.2 Subassemblies

56

4.3 Circuit Configuration

57

C141-E249 4-5

59

4.4 Power-on Sequence

60

Power-on

61

4.5 Self-calibration

62

4.6 Read/write Circuit

64

4.6.3 Read circuit

65

4.6.4 Digital PLL circuit

66

4.7 Servo Control

67

Diameter

70

4.7.3 Servo frame format

71

Theory of Device Operation

72

(2) Seek operation

72

4.7.5 Spindle motor control

73

CHAPTER 5 Interface

75

5.1 Physical Interface

76

COMRESET/COMINIT

78

106.7 ns

78

106.7 ns 106.7 ns

78

5.1.4 Connector pinouts

84

5.1.5 P11 function

85

5-12 C141-E249

86

5.1.6 Hot Plug

87

5.2 Logical Interface

88

5.2.1 Communication layers

89

5.3 Host Commands

103

Interface

104

5-30 C141-E249

104

5.3.2 Command descriptions

106

Word Value Content

162

5-88 C141-E249

162

C141-E249 5-89

163

5.3 Host Commands

163

C141-E249 5-91

165

(23) READ BUFFER (X’E4’)

175

(24) FLUSH CACHE (X’E7’)

176

(25) WRITE BUFFER (X’E8’)

177

Bit 0: Reserved

186

Setup FIS

186

× 2 minutes

190

(28) SET FEATURES (X’EF’)

193

→ Low Power Idle

197

01h (*1)

198

(36) SET MAX (X’F9’)

211

• SET MAX ADDRESS

211

• Description

217

(38) READ DMA EXT (X’25’)

218

Sector offset (7-0)

222

(43) WRITE DMA EXT (X’35’)

228

5.3.3 Error posting

242

5.4 Command Protocol

245

C141-E249 5-173

247

• WRITE DMA (EXT) (FUA EXT)

250

C141-E249 5-179

253

5-180 C141-E249

254

C141-E249 5-181

255

This page is intentionally

256

blank

256

CHAPTER 6 Operations

257

6.1 Reset and Diagnosis

258

6.1 Reset and Diagnosis

259

earlier than the host)

259

C141-E249 6-3

259

6.1.2 Response to COMRESET

260

6.2 Power Save

264

6.2.2 Power commands

266

• READ SECTOR (s) (EXT)

269

• READ MULTIPLE (EXT)

269

• READ DMA (EXT)

269

• READ FP DMA QUEUED

269

6.4.2 Caching operation

270

273

Cache valid data

275

START LBA

275

LAST LBA

275

6.5 Write Cache

276

IMPORTANT

277

Glossary

279

Acronyms and Abbreviations

283

Comment Form

291

DISK DRIVES PRODUCT MANUAL

293

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