IBM IC35L020 - Deskstar 20 GB Hard Drive - 9.1.7.2 Host Pausing Read DMA

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9.1.7.2 Host Pausing Read DMA

DSTROBE

HDMARDY-

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 host does not meet tSR, it should be ready to receive 2 (mode 0, 1 and 2) or 3 (mode 3, 4,

and 5) more strobes after HDMARDY– is negated.

Figure 28. Ultra DMA cycle timings (Host pausing Read)

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 - 9.1.7.2 Host Pausing Read DMA

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