Fujitsu MHE2064AT User Manual Page 189
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Operations
6-2 C141-E057-01EN
6.1 Device Response to the Reset
This section describes how the PDIAG- and DASP- signals responds when the
power of the IDD is turned on or the IDD receives a reset or diagnostic command.
6.1.1 Response to power-on
After the master device (device 0) releases its own power-on reset state, the master
device shall check a DASP- signal for up to 450 ms to confirm presence of a slave
device (device 1). The master device recognizes presence of the slave device
when it confirms assertion of the DASP- signal. Then, the master device checks a
PDIAG- signal to see if the slave device has sucessfully completed the power-on
diagnostics.
If the master device cannot confirm assertion of the DASP- signal within 450 ms,
the master device recognizes that no slave device is connected.
After the slave device (device 1) releases its own power-on reset state, the slave
device shall report its presence and the result of power-on diagnostics to the
master device as described below:
DASP- signal: Asserted within 400 ms.
PDIAG- signal: Negated within 1 ms and asserted within 30 seconds.
- MHE2064AT, MHE2043AT 1
- MHF2043AT, MHF2021AT 1
- DISK DRIVE 1
- PRODUCT MANUAL 1
- FOR SAFE OPERATION 2
- Revision History 4
- Overview of Manual 6
- Operating Environment 7
- Attention 7
- Liability Exception 8
- Important Alert Items 10
- Manual Organization 12
- Contents 14
- Illustrations 19
- CHAPTER 1 Device Overview 22
- 1.1 Features 23
- 1.1.3 Interface 24
- 1.2 Device Specifications 25
- 1.3 Power Requirements 27
- 1.5 Acoustic Noise 30
- 1.6 Shock and Vibration 30
- 1.7 Reliability 31
- 1.8 Error Rate 32
- 1.9 Media Defects 32
- C141-E057-01EN 2-1 34
- 2.1 Device Configuration 34
- 2.2 System Configuration 34
- 3.1 Dimensions 41
- 3.1 Dimensions 42
- C141-E057-01EN 3-3 42
- 3.2 Mounting 43
- 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
- 3.4 Jumper Settings 52
- C141-E057-01EN 3-13 52
- 4.1 Outline 55
- 4.2 Subassemblies 55
- 4.2.3 Spindle 56
- 4.2.4 Actuator 56
- 4.2.5 Air filter 56
- 4.3 Circuit Configuration 57
- 4.3 Circuit Configuration 58
- C141-E057-01EN 4-5 58
- 4.4 Power-on Sequence 59
- 4.5 Self-calibration 60
- • The power is turned on 61
- 4.6 Read/write Circuit 62
- 4.6.2 Write circuit 63
- 4.6 Read/write Circuit 64
- C141-E057-01EN 4-11 64
- 4.6.3 Read circuit 65
- 4.6.4 Digital PLL circuit 66
- 4.7 Servo Control 67
- Servo frame 69
- (60 servo frames 69
- 4.7.3 Servo frame format 71
- 4.7.4 Actuator motor control 72
- 4.7.5 Spindle motor control 73
- CHAPTER 5 Interface 76
- 5.1 Physical Interface 77
- 5.2 Logical Interface 81
- 5.2.1 I/O registers 82
- 5.2.2 Command block registers 83
- 5.3 Host Commands 88
- 5.3.2 Command descriptions 91
- → with Retry 96
- → without Retry 96
- (CM) 1 1 1 1 0 1 0 0 124
- • Data format version number 135
- • Attribute ID 135
- • Status Flag 136
- • Current attribute value 136
- • Raw attribute value 136
- • Current segment pointer 137
- • Check sum 138
- • Insurance failure threshold 138
- • SECURITY SET PASSWORD 141
- • SECURITY UNLOCK 141
- • SECURITY DISABLE PASSWORD 141
- • SECURITY ERASE UNIT 141
- 5.3.3 Error posting 146
- 5.4 Command Protocol 148
- 5.4.4 Other commands 153
- 5.5 Ultra DMA Feature Set 155
- 5.5.2 Phases of operation 156
- 5.6 Timing 170
- Interface 171
- 5-96 C141-E057-01EN 171
- 5.6 Timing 172
- C141-E057-01EN 5-97 172
- 5-98 C141-E057-01EN 173
- 5.6.5 Power-on and reset 186
- CHAPTER 6 Operations 188
- 6.1.1 Response to power-on 189
- C141-E057-01EN 6-3 190
- 6 seconds 193
- 6.2 Address Translation 194
- 6.2.2 Logical address 195
- 6.3 Power Save 196
- 6.4 Defect Management 198
- 6.4.1 Spare area 199
- 6.5 Read-Ahead Cache 201
- − WRITE SECTOR(S) 202
- − WRITE DMA 202
- − WRITE MULTIPLE 202
- − READ SECTOR (S) 202
- − READ DMA 202
- 6.5.3 Usage of read segment 203
- Empty areaMis-hit data 205
- Start LBALast LBA 205
- Read-ahead data 205
- Start LBA 208
- Last LBA 208
- 6.6 Write Cache 209
- • WRITE SECTOR(S) 210
- • WRITE MULTIPLE 210
- • WRITE DMA 210
- Glossary 212
- Acronyms and Abbreviations 216
- Comment Form 223
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