IBM DJSA-210 Hard Drive Specifications - Page 168

Note 3. When the Feature register is 85h = Disable Advanced Power Management the deepest Power

Get IBM DJSA-210 - Travelstar 10 GB Hard Drive PDF manuals and user guides View all IBM DJSA-210 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 168 highlights

Output Parameters To The Device Feature Destination code for this command. 02H Enable write cache (See note 2) 03H Set transfer mode based on value in sector count register 05H Enable Advanced Power Management 09H Enable Address Offset mode 44H 40 bytes of ECC apply on Read Long/Write Long commands 55H Disable read look-ahead feature 66H Disable reverting to power on defaults 82H Disable write cache 85H Disable Advanced Power Management (See note 3) 89H Disable Address Offset mode AAH Enable read look-ahead feature BBH 4 bytes of ECC apply on Read Long/Write Long commands CCH Enable reverting to power on defaults Note 1. When the Feature register is 03h ( = Set Transfer mode) the Sector Count Register specifies the transfer mechanism. The upper 5 bits define the type of transfer and the low order 3 bits encode the mode value. PIO Default Transfer Mode PIO Default Transfer Mode,Disable IORDY PIO Flow Control Transfer Mode x 00001 nnn Multiword DMA mode x 00100 nnn Ultra DMA mode x 01000 nnn 00000 000 00000 001 (nnn=000,001,010,011,100) (nnn=000,001,010) (nnn=000,001,010,011,100) When the Feature register is 05h ( = Enable Advanced Power Management) the Sector Count Register specifies the Advanced Power Management level. C0h-FEh 80h-BFh 01h-7Fh 00h, FFh The deepest Power Saving mode is Active Idle The deepest Power Saving mode is Low power Idle The deepest Power Saving mode is Standby Aborted Note 2. If the number of auto reassigned sectors reaches the device's reassignment capacity, the write cache function will be automatically disabled. Although the device still accepts the Set Features command (with Feature register = 02h) without error, the write cache function will remain disabled. For the current write cache function status, refer to the Identify Device Information (129 word) by the Identify Device command. Hard reset or power off must not be done in 5 seconds after write command completion when write cache is enabled. Note 3. When the Feature register is 85h (= Disable Advanced Power Management) the deepest Power Saving mode becomes Active Idle. Travelstar 32GH/30GT/20GN hard disk drive specifications 154

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
Output Parameters To The Device
Feature
Destination code for this command.
02H
Enable write cache
(See note 2)
03H
Set transfer mode based on value in sector count register
05H
Enable Advanced Power Management
09H
Enable Address Offset mode
44H
40 bytes of ECC apply on Read Long/Write Long commands
55H
Disable read look-ahead feature
66H
Disable reverting to power on defaults
82H
Disable write cache
85H
Disable Advanced Power Management (See note 3)
89H
Disable Address Offset mode
AAH
Enable read look-ahead feature
BBH
4 bytes of ECC apply on Read Long/Write Long commands
CCH
Enable reverting to power on defaults
Note 1. When the Feature register is 03h ( = Set Transfer mode) the Sector Count Register specifies the
transfer mechanism. The upper 5 bits define the type of transfer and the low order 3 bits encode the mode
value.
(nnn=000,001,010,011,100)
Ultra DMA mode x 01000 nnn
(nnn=000,001,010)
Multiword DMA mode x 00100 nnn
(nnn=000,001,010,011,100)
PIO Flow Control Transfer Mode x 00001 nnn
00000 001
PIO Default Transfer Mode,Disable IORDY
00000 000
PIO Default Transfer Mode
When the Feature register is 05h ( = Enable Advanced Power Management) the Sector Count Register
specifies the Advanced Power Management level.
Aborted
00h, FFh
The deepest Power Saving mode is Standby
01h–7Fh
The deepest Power Saving mode is Low power Idle
80h–BFh
The deepest Power Saving mode is Active Idle
C0h–FEh
Note 2. If the number of auto reassigned sectors reaches the device's reassignment capacity, the write
cache function will be automatically disabled. Although the device still accepts the Set Features command
(with Feature register = 02h) without error, the write cache function will remain disabled. For the current
write cache function status, refer to the Identify Device Information (129 word) by the Identify Device
command.
Hard reset or power off must not be done in 5 seconds after write command completion when write cache
is enabled.
Note 3. When the Feature register is 85h (= Disable Advanced Power Management) the deepest Power
Saving mode becomes Active Idle.
Travelstar 32GH/30GT/20GN hard disk drive specifications
154