IBM IC35L020 - Deskstar 20 GB Hard Drive - 9.1.7.6 Device Pausing Write DMA

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9.1.7.6 Device Pausing Write DMA

HSTROBE

DDMARDY-

DMACK-

DMARQ

tSR

STOP

tRFS

(all values are in ns)

50–60–60–60–70–75–Ready to final strobe timetRFS

––

–

–––20–30–50–Strobe to ready response timetSR

MAXMIN MAXMIN MAXMIN MAXMIN MAXMIN MAXMIN Parameter descriptions

MODE5MODE4MODE3MODE2MODE1MODE0

Signal

names

Note

When a device does not meet tSR, it must be ready to receive 3 more strobes after DDMARDY- is

negated.

Figure 32. Ultra DMA cycle timings—Device pausing Write

Deskstar 60 GXP Hard disk drive specification

Main Page

Default Chapter1
- Hard Disk Drive Specifications1
- Table of Contents5
List of Figures11
1 General15
- Glossary15
- General Caution15
- References15
2 General Features17
Part 1. Functional Specification19
3 Fixed Disk Subsystem Description21
- Control Electronics21
- Head Disk Assembly21
- Actuator21
4 Fixed Disk Characteristics23
- Formatted Capacity23
- Data Sheet23
- Figure 1. Formatted Capacity23
- Figure 2. Mechanical Positioning Performance23
- Performance Characteristics24
5 Defect Flagging Strategy31
6 Data Integrity33
- Data Loss at Power off33
- Write Cache33
- Equipment Status33
7 File Organization35
- File Format35
- Cylinder Allocation35
- Figure 17. Cylinder Allocation35
8 Defect Flagging Strategy37
- Shipped Format37
- Figure 16. Plist Physical Format37
- Figure 18. Plist Physical Format37
9 Specification39
- Electrical Interface39
- Environment61
- DC Power Requirements62
- Reliability64
- Mechanical Specifications65
- Vibration and Shock68
- Acoustics-Unit Sound Power Level Testing70
- Figure 55. Sinusoidal Shock Wave70
- Figure 56. Rotational Shock70
- Figure 57. Sound Power Levels70
- Identification-Labels71
- Safety71
- Electromagnetic Compatibility72
- CE Mark73
- C-Tick Mark73
Part 2. Interface Specification75
10 General77
- Introduction77
- Terminology77
11 Deviations from Standard79
12 Registers81
- Figure 58. Register Set81
- Alternate Status Register82
- Command Register82
- Cylinder High Register82
- Cylinder Low Register82
- Figure 59. Alternate Status Register82
- Data Register83
- Device Control Register83
- Drive Address Register83
- Figure 60. Device Control Register83
- Figure 61. Drive Address Register83
- Device/Head Register84
- Error Register84
- Figure 62. Device/Head Register84
- Figure 63. Error Register84
- Features Register85
- Sector Count Register85
- Sector Number Register85
- Status Register86
- Figure 64. Status Register86
13 General Operation89
- Reset Response89
- Figure 65. Reset Response Table89
- Register Initialization90
- Figure 66. Default Register Values90
- Figure 67. Diagnostic Codes90
- Diagnostic and Reset Considerations91
- Figure 68. Reset Error Register Values91
- Sector Addressing Mode92
  - Logical CHS Addressing Mode92
  - LBA Addressing Mode92
- Overlapped and Queued Feature93
- Power Management Feature94
  - Power Modes94
  - Power Management Commands94
  - Standby Timer94
  - Interface Capability for Power Modes95
- Function95
  - Attributes95
  - Attribute Values95
  - Attribute Thresholds95
  - Figure 69. Power Conditions95
  - Threshold Exceeded Condition96
  - Commands96
  - Off-Line Read Scanning96
  - Error Log96
  - Self-Test96
- Security Mode Feature Set96
  - Security Mode97
  - Security Level97
  - Passwords97
  - Operation Example97
  - Figure 70. Initial Setting98
  - Figure 71. Usual Operation99
  - Figure 72. Password Lost100
  - User Password Lost100
  - Command Table101
  - Figure 73. Command Table for Device Lock Operation (1 of 2)101
- Host Protected Area Function102
  - Example for Operation (in LBA Mode)102
  - Figure 73. Command Table for Device Lock Operation (2 of 2)102
  - Security Extensions103
- Seek Overlap104
- Figure 74. Seek Overlap104
- Write Cache Function105
- Reassign Function105
- Auto Reassign Function105
  - Nonrecovered Write Errors105
  - Nonrecovered Read Errors105
  - Recovered Read Errors106
- Power-Up in Standby Feature Set106
- Advanced Power Management Feature Set (APM)106
- Automatic Acoustic Management Feature Set (AAM)107
- Address Offset Feature107
  - Enable/Disable Address Offset Mode107
  - Identify Device Data108
  - Exceptions in Address Offset Mode108
  - Figure 75. Device Address Map before and after Set Feature108
14 Command Protocol109
- PIO Data in Commands109
- PIO Data out Commands110
- Non-Data Commands112
- DMA Commands113
- DMA Queued Commands113
15 Command Descriptions115
- Figure 76. Command Set (1 of 2)115
- Figure 76. Command Set (2 of 2)116
- Figure 77. Command Set-Subcommand117
- Check Power Mode (E5H/98H)119
- Figure 78. Check Power Mode Command (E5H/98H)119
- Execute Device Diagnostic (90H)120
- Figure 79. Execute Device Diagnostic Command (90H)120
- Flush Cache (E7H)121
- Figure 80. Flush Cache Command (E7H)121
- Format Track (50H)122
- Figure 81. Format Track Command (50H)122
- Format Unit (F7H)124
- Figure 82. Format Unit Command (F7H)124
- Identify Device (Ech)125
- Figure 83. Identify Device Command (Ech)125
- Figure 84. Identify Device Information (1 of 6)126
- Figure 84. Identify Device Information (2 of 6)127
- Figure 84. Identify Device Information (3 of 6)128
- Figure 84. Identify Device Information (4 of 6)129
- Figure 84. Identify Device Information (5 of 6)130
- Figure 84. Identify Device Information (6 of 6)131
- Idle (E3H/97H)132
- Figure 85. Idle Command (E3H/97H)132
- Idle Immediate (E1H/95H)134
- Figure 86. Idle Immediate Command (E1H/95H)134
- Initialize Device Parameters (91H)135
- Figure 87. Initialize Device Parameters Command (91H)135
- NOP (00H)136
- Figure 88. NOP Command (00H)136
- Read Buffer (E4H)137
- Figure 89. Read Buffer Command (E4H)137
- Read DMA (C8H/C9H)138
- Figure 90. Read DMA Command (C8H/C9H)138
- Read DMA Queued (C7H)140
- Figure 91. Read DMA Queued Command (C7H)140
- Figure 110. Output Parameters to the Device140
- Read Long (22H/23H)142
- Figure 92. Read Long Command (22H/23H)142
- Read Multiple (C4H)144
- Figure 93. Read Multiple Command (C4H)144
- Read Native Max Address (F8H)146
- Figure 94. Read Native Max LBA/CYL (F8H)146
- Read Sectors (20H/21H)147
- Figure 95. Read Sectors Command (20H/21H)147
- Read Verify Sectors (40H/41H)149
- Figure 96. Read Verify Sectors Command (40H/41H)149
- Recalibrate (1Xh)151
- Figure 97. Recalibrate Command (1Xh)151
- Security Disable Password (F6H)152
- Figure 98. Security Disable Password Command (F6H)152
- Figure 99. Password Information for Security Disable Password Command152
- Security Erase Prepare (F3H)153
- Figure 100. Security Erase Prepare Command (F3H)153
- Security Erase Unit (F4H)154
- Figure 101. Security Erase Unit Command (F4H)154
- Figure 102. Erase Unit Information155
- Security Freeze Lock (F5H)156
- Figure 103. Security Freeze Lock Command (F5H)156
- Security Set Password (F1H)157
- Figure 104. Security Set Password Command (F1H)157
- Figure 105. Security Set Password Information158
- Security Unlock (F2H)159
- Figure 106. Security Unlock Command (F2H)159
- Seek (7Xh)160
- Figure 107. Seek Command (7Xh)160
- Service (A2H)161
- Figure 108. Service Command (A2H)161
- Set Features (Efh)162
  - Figure 109. Set Features Command (Efh)162
  - Advanced Power Management164
  - Automatic Acoustic Management164
  - Set Transfer Mode164
  - Write Cache164
- Set Max Address (F9H)165
  - Figure 111. Set Max Address (F9H)165
  - Figure 112. Set Max Set Password167
  - Figure 113. Set Max Set Password Data Contents167
  - Set Max Set Password (Feature = 01H)167
  - Figure 114. Set Max Lock168
  - Set Max Lock (Feature = 02H)168
  - Figure 115. Set Max Unlock (F9H)169
  - Set Max Unlock (Feature = 03H)169
  - Figure 116. Set Max Freeze Lock (F9H)170
  - Set Max Freeze Lock (Feature = 04H)170
- Set Multiple (C6H)171
- Figure 117. Set Multiple Command (C6H)171
- Sleep (E6H/99H)172
- Figure 118. Sleep Command (E6H/99H)172
- Function Set (B0H)173
  - Figure 119. S.M.A.R.T. Function Set Command (B0H)173
  - Enable/Disable Attribute Autosave (Subcommand D2H)174
  - Figure 120. S.M.A.R.T. Function Set Subcommands174
  - Read Attribute Thresholds (Subcommand D1H)174
  - Read Attribute Values (Subcommand D0H)174
  - Execute Off-Line Immediate (Subcommand D4H)175
  - Save Attribute Values (Subcommand D3H)175
  - Disable Operations (Subcommand D9H)176
  - Enable Operations (Subcommand D8H)176
  - Figure 121. Log Sector Addresses176
  - Read Log Sector (Subcommand D5H)176
  - Write Log Sector (Subcommand D6H)176
  - Enable/Disable Automatic Off-Line (Subcommand Dbh)177
  - Return Status (Subcommand Dah)177
  - Data Structure Revision Number178
  - Device Attributes Data Structure178
  - Figure 122. Device Attributes Data Structure178
  - Figure 123. Individual Attribute Data Structure179
  - Off-Line Data Collection Capability181
  - Total Time in Seconds to Complete Off-Line Data Collection Activity181
  - Capability182
  - Self-Test Failure Check Point182
  - Device Attribute Thresholds Data Structure183
  - Figure 124. Attribute ID Numbers183
  - Figure 125. Device Attribute Thresholds Data Structure183
  - Figure 126. Individual Threshold Data Structure183
  - Error Log Sector184
  - Figure 127. SMART Error Log Sector184
  - Figure 128. Error Log Data Structure185
  - Figure 129. Command Data Structure185
  - Figure 130. Error Data Structure186
  - Reserved186
  - Vendor Specific186
  - Figure 131. Self-Test Log Data Structure187
  - Self-Test Log Data Structure187
  - Error Reporting188
  - Figure 132. S.M.A.R.T. Error Codes188
- Standby (E2H/96H)189
- Figure 133. Standby Command (E2H/96H)189
- Standby Immediate (E0H/94H)191
- Figure 134. Standby Immediate Command (E0H/94H)191
- Write Buffer (E8H)192
- Figure 135. Write Buffer Command (E8H)192
- Write DMA (Cah/Cbh)193
- Figure 136. Write DMA Command (Cah/Cbh)193
- Write DMA Queued (Cch)195
- Figure 137. Write DMA Queued Command (Cch)195
- Write Long (32H/33H)197
- Figure 138. Write Long Command (32H/33H)197
- Write Multiple (C5H)199
- Figure 139. Write Multiple Command (C5H)199
- Write Sectors (30H/31H)201
- Figure 140. Write Sectors Command (30H/31H)201
Appendix203
- Commands Support Coverage203
- Figure 141. Command Coverage (1 of 2)203
- Figure 141. Command Coverage (2 of 2)204
- SET FEATURES Command Support Coverage205
- Figure 142. SET FEATURES Command Coverage205
Index207

IBM IC35L020 - Deskstar 20 GB Hard Drive - 9.1.7.6 Device Pausing Write DMA

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