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Fujitsu MHR2030AT User Manual Page 188
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Interface
5-114
C141-E145-02EN
g
d
f
f
d
e
Figure 5.7
Normal DMA data tr
ansfer
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MHR2040AT, MHR2030AT
1
MHR2020AT, MHR2010AT
1
DISK DRIVES
1
PRODUCT MANUAL
1
FOR SAFE OPERATION
2
Revision History
3
Overview of Manual
5
Operating Environment
6
Conventions
6
Attention
7
Liability Exception
7
Important Alert Items
9
Manual Organization
11
Contents
13
Illustrations
18
CHAPTER 1 Device Overview
21
1.1 Features
22
1.1.3 Interface
23
1.2 Device Specifications
24
1.3 Power Requirements
25
1.5 Acoustic Noise
28
1.6 Shock and Vibration
28
1.7 Reliability
29
1.8 Error Rate
30
1.9 Media Defects
30
1.10Load/Unload Function
30
C141-E145-02EN 2-1
33
2.1 Device Configuration
33
2.2 System Configuration
33
3.1 Dimensions
40
3.2 Mounting
41
Installation Conditions
46
3-8 C141-E145-02EN
46
Figure 3.7 Handling cautions
46
3.3 Cable Connections
47
3.3.3 Device connection
48
3.4 Jumper Settings
49
3.4.2 Factory default setting
50
3.4.4 CSEL setting
51
3-14 C141-E145-02EN
52
4.1 Outline
54
4.2 Subassemblies
54
4.2.3 Spindle
55
4.2.4 Actuator
55
4.2.5 Air filter
55
4.3 Circuit Configuration
56
4.3 Circuit Configuration
57
C141-E145-02EN 4-5
57
Theory of Device Operation
58
4-6 C141-E145-02EN
58
4.4 Power-on Sequence
59
4.5 Self-calibration
60
4.6 Read/write Circuit
62
4.6 Read/write Circuit
63
C141-E145-02EN 4-11
63
4.6.3 Read circuit
64
4.6.4 Digital PLL circuit
65
4.7 Servo Control
66
4.7.3 Servo frame format
71
4.7.4 Actuator motor control
72
4.7.5 Spindle motor control
73
CHAPTER 5 Interface
75
5.1 Physical Interface
76
5.2 Logical Interface
80
5.2.1 I/O registers
81
5.2.2 Command block registers
82
5.2.3 Control block registers
87
5.3 Host Commands
88
5.3.2 Command descriptions
92
Password information
125
(CM) 11110100
133
5.3.3 Error posting
178
5.3 Host Commands
179
C141-E145-02EN 5-105
179
5.4 Command Protocol
180
IMPORTANT
181
5.4.4 Other commands
186
Interface
188
5-114 C141-E145-02EN
188
5.5 Ultra DMA Feature Set
189
5.5.2 Phases of operation
190
5.5.5 Ultra DMA CRC rules
199
5.6 Timing
201
5.6.2 Multiword data transfer
202
5.6.3 Ultra DMA data transfer
203
(host)
215
DA0, DA1, DA2
215
CS0-, CS1
215
5.6.4 Power-on and reset
216
CHAPTER 6 Operations
217
6.1.1 Response to power-on
218
6.2 Power Save
223
6.3 Defect Processing
225
Sector (physical)
226
Cylinder 0
226
(Not used)
226
6.4 Read-ahead Cache
228
6.5 Write Cache
235
Glossary
237
Acronyms and Abbreviations
241
Comment Form
245
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