Deskstar 7K160 Hard Disk Drive Specification
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12.17.2.3.2 Data format of command data structure
Table 101: Command data structure
Note:
bits (7:0) refer to the most recently written contents of the register. Bits (15:8) refer to the contents of the reg-
ister prior to the most recent write to the register
12.17.2.3.3 Data format of error data structure
Table 102: Error data structure
Description
Bytes
Offset
Device Control register
1
00h
Features register (7:0) (see Note)
1
01h
Features register (15:8)
1
02h
Sector count register(7:0)
1
03h
Sector count register(15:8)
1
04h
Sector number register(7:0)
1
05h
Sector number register(15:8)
1
06h
Cylinder Low register (7:0)
1
07h
Cylinder Low register (15:8)
1
08h
Cylinder High register (7:0)
1
09h
Cylinder High register (15:8)
1
0Ah
Device/Head register
1
0Bh
Command register
1
0Ch
Reserved
1
0Dh
Timestamp (milliseconds from Power-on)
4
0Eh
18
Description
Bytes
Offset
Reserved
1
00h
Error register (7:0)
1
01h
Sector count register(7:0)(See Note)
1
02h
Sector count register(15:8)(See Note)
1
03h
Sector number register(7:0)
1
04h
Sector number register(15:8)
1
05h
Cylinder Low register (7:0)
1
06h
Cylinder Low register (15:8)
1
07h
Cylinder High register (7:0)
1
08h
Cylinder High register (15:8)
1
09h
Device/Head register
1
0Ah
Status register
1
0Bh
Extended error data (vendor specific)
19
0Ch
State
1
1Fh
Life stamp (hours)
2
20h
34
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