IBM DTLA-305040 Hard Drive Specifications - Page 133
Current Set Feature Option., Write Cache
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Word 129 Content xxxxH Ÿ 130-159 xxxxH Ÿ 160-254 0000H 255 xxA5H Description Current Set Feature Option. Bit assignments 15- 4 Reserve 3 Auto reassign 1= Enable 2 Reverting 1= Enable 1 Read Look-ahead 1= Enable 0 Write Cache 1= Enable Reserved Reserved 15- 8 Checksum. This value is the two's complement of the sum of all bytes in byte 0 through 510 7- 0 (A5) Signature Figure 92. Identify Device Information (6 of 6) Deskstar 40GV & 75GXP hard disk drive specifications 121
15- 8 Checksum.
This value is the two's complement
of the sum of all bytes in byte 0 through 510
7- 0 (A5) Signature
xxA5H
255
Reserved
0000H
160-254
Reserved
°
xxxxH
130-159
Current Set Feature Option.
Bit assignments
15- 4
Reserve
3
Auto reassign
1= Enable
2
Reverting
1= Enable
1
Read Look-ahead
1= Enable
0
Write Cache
1= Enable
°
xxxxH
129
Description
Content
Word
Figure 92. Identify Device Information (6 of 6)
Deskstar 40GV & 75GXP hard disk drive specifications
121