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Fujitsu MHW2040AC User Manual Page 276
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MHW2060AC, MHW2040AC
1
DISK DRIVES
1
PRODUCT MANUAL
1
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
1.3 Power Requirements
29
1.5 Acoustic Noise
33
1.6 Shock and Vibration
33
1.7 Reliability
34
1.8 Error Rate
35
1.9 Media Defects
35
1.10 Load/Unload Function
35
2.1 Device Configuration
40
2.2 System Configuration
41
2.2.3 2 drives connection
42
3.1 Dimensions
44
3.2 Mounting
45
Connector
50
3.3.3 Device connection
51
3.4 Jumper Settings
52
3.4.4 CSEL setting
54
4.1 Outline
58
4.2 Subassemblies
58
4.3 Circuit Configuration
59
C141-E258 4-5
61
4.4 Power-on Sequence
62
4.5 Self-calibration
63
4.6 Read/write Circuit
65
4.6.3 Read circuit
66
4.6.4 Digital PLL circuit
67
4.7 Servo Control
68
Theory of Device Operation
72
4-16 C141-E258
72
4.7.3 Servo frame format
73
4.7.5 Spindle motor control
75
CHAPTER 5 Interface
77
5.1 Physical Interface
78
5.2 Logical Interface
82
5.2.1 I/O registers
83
5.3 Host Commands
90
5.3.2 Command descriptions
94
• Default function
110
• Unload Feature:
110
• Attribute ID
123
• Raw attribute value
124
• Status Flag
124
• Current attribute value
124
• Error logging capability
127
• Check sum
127
• SMART error logging
128
• Command data structure
130
• Error data structure
130
• Status
130
• SMART self-test
131
• Self-test number
131
• Self-test index
131
• Test span
132
• Current LBA under test
132
• Current span under test
132
• Feature Flags
133
(CM) 1 1 1 0 0 1 0 0
149
• SET MAX ADDRESS
180
Password information
182
• SET MAX SET PASSWORD
184
• SET MAX LOCK
184
• SET MAX UNLOCK
184
• Description
186
5.3.3 Error posting
203
Interface
204
5-128 C141-E258
204
5.4 Command Protocol
205
(*) Transfers dummy data
207
5.4.4 Other commands
211
5.5 Ultra DMA Feature Set
213
5.5.2 Phases of operation
214
5.5.5 Ultra DMA CRC rules
223
5.6 Timing
225
5.6.4 Power-on and reset
240
CHAPTER 6 Operations
241
6.1.1 Response to power-on
242
6.2 Power Save
247
6.3 Defect Processing
249
Sector (physical)
250
Cylinder 0
250
(Not used)
250
779 780
251
6.4 Read-ahead Cache
252
For MPU work For R/W command
252
8,388,608 bytes
252
6.4.2 Caching operation
253
256
6.5 Write Cache
258
Glossary
261
Acronyms and Abbreviations
265
Comment Form
273
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