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Interface
Table 5.5 Operation of DOWNLOAD MICROCODE
Host Command Movement of device
Subcommand code
(FR Reg)
Sector count
(SN, SC Reg)
Data transfer Microcode rewriting execution
0000h Non Rewriting execution reservation
01h
xxxxh It is. Rewriting execution reservation
0000h Non Execution. **
07h
xxxxh It is. Execution. **
Excluding 01h and 07h − Abort
**: In the following cases, Subcommand code=07h returns Abort as an error
though becomes Microcode rewriting execution specification.
1) Abnormality of the transmitted Microcode data is detected.
2) The data transfer is not done (The number of transfer: 0).
3) "DOWNLOAD MICROCODE" The command is not continuously issued.
Table 5.6 Example of rewriting procedure of data 512 KBytes (40000h Bytes) of
microcode
Transfer example 1:
1) CMD = 92h SN, SC = 0100h FR = 0lh
2) CMD = 92h SN, SC = 0100h FR = 0lh
3) CMD = 92h SN, SC = 0100h FR = 0lh
4) CMD = 92h SN, SC = 0100h FR = 0lh
5) CMD = 92h SN, SC = 0000h FR = 07h
Transfer from 0 to 127 KB
Transfer from 128 to 255 KB
Transfer from 256 to 383 KB
Transfer from 384 to 511 KB
Firmware rewriting execution
Transfer example 2:
1) CMD = 92h SN, SC = 0400h FR = 0lh
2) CMD = 92h SN, SC = 0000h FR = 07h
Transfer of 512 KB
Firmware rewriting execution
Transfer example 3:
1) CMD = 92h SN, SC = 0400h FR = 07h
Transfer of 512 KB and Firmware rewriting
execution
Transfer example 4:
1) CMD = 92h SN, SC = 0100h FR = 0lh
2) CMD = 92h SN, SC = 0100h FR = 0lh
3) CMD = 92h SN, SC = 0100h FR = 0lh
4) CMD = 92h SN, SC = 0100h FR = 07h
Transfer from 0 to 127 KB
Transfer from 128 to 255 KB
Transfer from 256 to 383 KB
Transfer from 384 to 511 KB and Firmware
rewriting execution
When the data of the transfer microcode did the rewriting specification with the
illegality and the data transfer not done or the DOWNLOAD MICROCODE
command is not continuously issued, reports on the Aborted Command error.
5-32 C141-E258
- 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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