11.29 Recalibrate (1xh)
Command Block Output Registers
Register
Data
Feature
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Error Register
7
6
5
CRC UNC
0
0
0
0
Table 123 Recalibrate Command (1xh)
The Recalibrate command moves the read/write heads from anywhere on the disk to cylinder 0.
If the device cannot reach cylinder 0, T0N (Track 0 Not Found) will be set in the Error Register.
7
6
5
4
3
2
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
-
1
D
-
-
-
0
0
0
1
-
-
-
4
3
2
1
IDN
0
ABT T0N AMN
0
0
V
V
Hitachi hard disk drive specifications
Command Block Input Registers
0
Register
7
-
Data
-
-
Error
-
Sector Count
-
-
Sector Number
-
-
Cylinder Low
-
-
Cylinder High
-
-
Device/Head
-
-
Status
Status Register
0
7
6
5
BSY RDY
DF
0
0
V
0
181
6
5
4
3
2
1
0
-
-
-
-
-
-
-
...See Below...
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
...See Below...
4
3
2
1
DSC DRQ COR IDX
ERR
V
-
0
-
0
V