Fujitsu MHZ2250BJ Manuel d'utilisateur Page 153
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Noté. / 5. Basé sur avis des utilisateurs
5.3 Host Commands
Table 5.29 FEATURE CONTROL COMMAND
Byte(hex) Name Value Description
00, 01 Action Code 0004h FEATURE CONTROL COMMAND
0001h Set New State
0002h
Return Current State
Current Feature Control State is displayed in SN/SC
field.
02, 03
Function
Code
0003h
Return Option Flag
Current Option Flag is displayed in SN/SC field.
0001h Write Cache
0002h Write Reordering
04, 05 Feature Code
0003h Set time interval for temperature logging
Feature Code = 0001h (Set Write Cache)
0001h: Allow write cache operation to be determined
by ATA Set Feature command.
0002h: Force Write Cache enabled.
0003h: Force Write Cache disable.
Feature Code = 0002h(Set Write Reordering)
0001h: Enable Write Reordering
0002h: Disable Write Reordering
06, 07 New State (2 byte)
Feature Code = 0003h(Set time interval)
0000h: Invalid
0001h-FFFFh: Logging interval in minutes
(ex.) 0001h: Temperature data collection
interval is 1min.
000Fh: Temperature data collection
interval is 15min.
08, 09 Option Flag (2 byte)
Bit 15-1: Reserved
Bit0: 1 = Maintain the state at
COMRESET/Power cycle.
0 = Revert to default setting at
COMRESET/Power cycle.
0A to 1FF (Reserved) - Reserved
C141-E280 5-79
- FOR SAFE OPERATION 2
- Revision History 3
- Preface 5
- Operating Environment 6
- Conventions 7
- Attention 7
- Liability Exception 7
- Hot Plug 8
- 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 27
- 1.3 Power Requirements 30
- 1.5 Acoustic Noise 34
- 1.6 Shock and Vibration 34
- 1.7 Reliability 35
- (2) Positioning error 36
- 2.1 Device Configuration 42
- 2.2 System Configuration 43
- This page is intentionally 44
- blank 44
- 3.1 Dimensions 46
- 3.2 Mounting 47
- Mounting screw hole 51
- Cable connection 51
- 3.3.1 Device connector 53
- Installation Conditions 54
- 3-10 C141-E280 54
- 4.1 Outline 58
- 4.2 Subassemblies 58
- 4.3 Circuit Configuration 59
- 4.4 Power-on Sequence 62
- Power-on 63
- 4.5 Self-calibration 64
- 4.6 Read/write Circuit 66
- 4.6.3 Read circuit 67
- 4.6.4 Digital PLL circuit 67
- 4.7 Servo Control 68
- Diameter 71
- 4.7.3 Servo frame format 72
- 4.7.5 Spindle motor control 74
- 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 81
- 5.1.5 P11 function 82
- 5.1.6 Hot Plug 84
- 5.2 Logical Interface 85
- 5.2.1 Communication layers 86
- 5.3 Host Commands 101
- Interface 102
- 5-28 C141-E280 102
- 5.3.2 Command descriptions 104
- SN Sector count (15-8) 117
- FR Field = 03 (Mode3) 118
- 5-90 C141-E280 164
- 5.3 Host Commands 165
- Bit 0: Reserved 185
- Setup FIS 185
- → Low Power Idle 197
- → Low Power Idle → Standby 197
- 01h (*1) 198
- • SET MAX ADDRESS 212
- • Description 218
- Sector offset (7-0) 223
- • SCT WRITE DATA (SN = E1h) 237
- Table 5.43 Operation mode 240
- 5.3.3 Error posting 247
- 5.4 Command Protocol 249
- 5.4 Command Protocol 251
- PIO Setup 253
- 5-186 C141-E280 260
- C141-E280 5-187 261
- 5-188 C141-E280 262
- CHAPTER 6 Operations 263
- 6.1 Reset and Diagnosis 264
- earlier than the host) 265
- C141-E280 6-3 265
- 6.1.2 Response to COMRESET 266
- • Security mode state 267
- • SECURITY FREEZE LOCK 267
- • SECURITY UNLOCK 267
- 6.2 Power Save 270
- 6.2.2 Power commands 272
- 6.4 Read-ahead Cache 275
- 6.4.2 Caching operation 276
- 279
- Cache valid data 281
- START LBA 281
- LAST LBA 281
- 6.5 Write Cache 282
- IMPORTANT 283
- 7.1 Maintenance 286
- 7.1.3 Maintenance levels 289
- Disk drive 290
- Firmware 290
- A2 Revision 291
- A3 Revision 291
- 7.1.6 Self-diagnostics 292
- 7.1.7 Test 292
- Figure 7.3 Test flowchart 293
- C141-E280 7-9 293
- 7.2 Operation Confirmation 295
- 7.5 Spare Disk Drive 299
- Glossary 301
- Acronyms and Abbreviations 305
- Comment Form 315
- C141-E280-01EN 317
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