User manual

Hitachi hard disk drive specifications
218
Error data structure: Data format of error data structure is shown below.
Description
Bytes
Offset
Reserved
1
00h
Error register
1
01h
Sector count register
1
02h
Sector number register
1
03h
Cylinder Low register
1
04h
Cylinder High register
1
05h
Device/Head register
1
06h
Status register
1
07h
Extended error data (vendor specific)
19
08h
State
1
1Bh
Life timestamp (hours)
2
1Ch
30
Table 159 Error data structure
State field contains a value indicating the device state when command was issued to the device.
Value
State
x0h
Unknown
x1h
Sleep
x2h
Standby
x3h
Active/Idle
x4h
SMART Off-line or Self-test
x5h-xAh
Reserved
xBh-xFh
Vendor specific
Note: The value of x is vendor specific.