IBM DTCA-24090 Hard Drive Specifications - Page 117

Set by Set Features Command 01h to FEh

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Word 84 85 86 87 88 89 90 91 92 127 128 129 130 131 132 255 Content Description 0000H Reserved 000XH ABLE enable. Bit assignments 15 4 Reserved 3 1= Enable, 0= Disable 20 Reserved 0000H Reserved 0007H Ultra DMA Transfer mode (mode 2 supported) 000AH Reserved 0010H Reserved 4080H ABLE mode currect setting 15(=0) Always 14(=1) Always 13 8(=0) Reserved 7 0(=X) Currect Adaptive Power Save Transition Setting Set by Set Features Command (01h to FEh) 0000H Reserved XXXXH Security Mode Feature. Bit assignments 0 Capability 1= Support 1 Enable/Disable 1= Enable 2 Lock 1= Locked 3 Freeze 1= Frozen 4 Expire 1= Expired 8 Security Level 1= Maximum, 0= High 9 15 Reserved XXXXH * Current Set Feature Option. Bit assignments 0 Write Cache 1= Enable 1 Read Look ahead 1= Enable 2 Reverting 1= Enable 3 Auto reassign 1= Enable 4 15 Reserved XXXXH * Reserved 000XH * Initial Power Mode Selection. Bit assignments 0 Initial Power Mode 1= Standby, 0= Idle 1 15 Reserved 0000H Reserved Figure 66. Identify device information --- Continued --- Note. The '*' mark in 'Content' field indicates the use of those parameters that are vedor specific. Note 1. The number of cylinders is 1F08H for DTCA-24090, 18A0H for DTCA-23240, Note 2. The model number in ASCII is 'IBM-DTCA-24090' for DTCA-24090, 'IBM-DTCA-23240' for DTCA-23240, Note 3. Total number of user addressable sectors is 7A2F80H for DTCA-24090, 60F600H for DTCA-23240, Command Descriptions 109

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Word
Content
Description
84 85
0000H
Reserved
86
000XH
ABLE enable. Bit assignments
15
4
Reserved
3
1= Enable, 0= Disable
2
0
Reserved
87
0000H
Reserved
88
0007H
Ultra DMA Transfer mode (mode 2 supported)
89
000AH
Reserved
90
0010H
Reserved
91
4080H
ABLE mode currect setting
15(=0) Always
14(=1) Always
13
8(=0) Reserved
7
0(=X) Currect Adaptive Power Save
Transition Setting
Set by Set Features Command (01h to FEh)
92 127
0000H
Reserved
128
XXXXH
Security Mode Feature. Bit assignments
0
Capability
1= Support
1
Enable/Disable
1= Enable
2
Lock
1= Locked
3
Freeze
1= Frozen
4
Expire
1= Expired
8
Security Level
1= Maximum, 0= High
9 15
Reserved
129
XXXXH
*
Current Set Feature Option. Bit assignments
0
Write Cache
1= Enable
1
Read Look ahead
1= Enable
2
Reverting
1= Enable
3
Auto reassign
1= Enable
4 15
Reserved
130
XXXXH
*
Reserved
131
000XH
*
Initial Power Mode Selection. Bit assignments
0
Initial Power Mode
1= Standby, 0= Idle
1 15
Reserved
132 255
0000H
Reserved
Figure 66. Identify device information --- Continued ---
Note.
The '*' mark in 'Content' field indicates the use of those
parameters that are vedor specific.
Note 1. The number of cylinders is
1F08H for DTCA-24090,
18A0H for DTCA-23240,
Note 2. The model number in ASCII is
'IBM-DTCA-24090' for DTCA-24090,
'IBM-DTCA-23240' for DTCA-23240,
Note 3. Total number of user addressable sectors is
7A2F80H for DTCA-24090,
60F600H for DTCA-23240,
Command Descriptions
109