Fujitsu MHV2160BT User Manual Page 81
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5.1 Physical Interface
C141-E239 5-5
5.1.2.2 Primitives descriptions
The following table contains the primitive mnemonics and a brief description of
each.
Primitive Name Description
ALIGN Physical layer control Upon receipt of an ALIGN, the physical layer
readjusts internal operations as necessary to
perform its functions correctly.
CONT Continue repeating
previous primitive
The CONT primitive allows long strings of
repeated primitives to be eliminated. The
CONT primitive implies that the previously
received primitive be repeated as long as
another primitive is not received.
EOF End of frame EOF marks the end of a frame.
PMACK Power management
acknowledge
Sent in response to a PMREQ_S or
PMREQ_P when a receiving node is prepared
to enter a power mode state.
HOLD Hold data transmission HOLD is transmitted in place of payload data
within a frame when the transmitter does not
have the next payload data ready for
transmission. HOLD is also transmitted on the
backchannel when a receiver is not ready to
receive additional payload data.
HOLDA Hold acknowledge This primitive is sent by a transmitter as long
the HOLD primitive is received by its
companion receiver.
PMNAK Power management
denial
Sent in response to a PMREQ_S or
PMREQ_P when a receiving node is not
prepared to enter a power mode state or when
power management is not supported.
PMREQ_P Power management
request to partial
This primitive is sent continuously until
PMACK or PMNAK is received. When
PMACK is received, current node (host or
device) will stop PMREQ_P and enters the
Partial power management state.
PMREQ_S Power management
request to slumber
This primitive is sent continuously until
PMACK or PMNAK is received. When
PMACK is received, current node (host or
device) will stop PMREQ_S and enters the
Slumber power management state.
R_ERR Reception error Current node (host or device) detected error in
received payload.
- MHV2160BT 1
- DISK DRIVE 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
- Contents 19
- C141-E239 xv 19
- Illustrations 20
- CHAPTER 1 Device Overview 25
- 1.1 Features 26
- 1.1.3 Interface 27
- 1.2 Device Specifications 28
- 1.3 Power Requirements 30
- 1.5 Acoustic Noise 34
- 1.6 Shock and Vibration 34
- 1.7 Reliability 35
- 1.8 Error Rate 36
- 1.9 Media Defects 36
- 1.10 Load/Unload Function 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
- 3.2 Mounting 49
- Installation Conditions 50
- (4) Ambient temperature 50
- General notes 52
- Installation 52
- Recommended equipments 52
- 4.1 Outline 58
- 4.2 Subassemblies 58
- 4.3 Circuit Configuration 59
- C141-E239 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
- 4.7.3 Servo frame format 73
- 4.7.5 Spindle motor control 75
- CHAPTER 5 Interface 77
- 5.1 Physical Interface 78
- COMRESET/COMINIT 80
- 106.7 ns 80
- 106.7 ns 106.7 ns 80
- 20-80TX 84
- 5.1.4 Connector pinouts 86
- 5.1.5 P11 function 87
- 5-12 C141-E239 88
- 5.1.6 Hot Plug 89
- Host located layers 90
- Device located layers 90
- 5.2.1 Communication layers 91
- 5.3 Host Commands 105
- Interface 106
- 5-30 C141-E239 106
- 5.3.2 Command descriptions 108
- 5-88 C141-E239 164
- Word Value Content 164
- 5.3 Host Commands 165
- C141-E239 5-89 165
- Bit 0: Reserved 187
- Setup FIS 188
- 01h (*1) 198
- • WRITE MULTIPLE FUA EXT 207
- • WRITE DMA FUA EXT 207
- • READ FP DMA QUEUED 207
- • WRITE FP DMA QUEUED 207
- Status information 212
- Password information 213
- Sector offset (7-0) 222
- 5.3.3 Error posting 242
- 5.4 Command Protocol 244
- • READ DMA (EXT) 249
- • IDENTFY DEVICE 249
- • IDENTFY DEVICE DMA 249
- DMA Active 250
- 5.4 Command Protocol 253
- C141-E239 5-177 253
- 5.5 Power-on and COMRESET 254
- C141-E239 5-179 255
- CHAPTER 6 Operations 257
- 6.1 Reset and Diagnosis 258
- 6.1 Reset and Diagnosis 259
- C141-E239 6-3 259
- earlier than the host) 259
- 6.1.2 Response to COMRESET 260
- • Security mode state 261
- • SECURITY FREEZE LOCK 261
- • SECURITY UNLOCK 261
- 6.2 Power Save 264
- 6.2.2 Power commands 266
- 6.4 Read-ahead Cache 269
- 6.4.2 Caching operation 270
- 273
- 6.5 Write Cache 276
- IMPORTANT 277
- Glossary 279
- Acronyms and Abbreviations 283
- Comment Form 291
- C141-E239-01EN 293
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