11.12 Idle Immediate (E1h/95h)
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 90 Idle Immediate Command (E1h/95h)
The Idle Immediate command causes the device to enter Idle mode.
The device is spun up to operating speed. If the device is already spinning, the spin up sequence is not
executed.
During Idle mode the device is spinning and ready to respond to host commands immediately.
The Idle Immediate command will not affect to auto power down timeout parameter.
7
6
5
4
3
2
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1
-
1
D
-
-
-
1
1
1
0
0
0
0
4
3
2
1
IDN
0
ABT T0N AMN
0
0
V
0
Hitachi hard disk drive specifications
Command Block Input Registers
0
Register
7
-
Data
-
-
Error
-
Sector Count
-
-
Sector Number
-
-
Cylinder Low
-
-
Cylinder High
-
-
Device/Head
-
1
Status
Status Register
0
7
6
5
BSY RDY
DF
0
0
V
0
139
6
5
4
3
2
1
0
-
-
-
-
-
-
-
...See Below...
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
...See Below...
4
3
2
1
DSC DRQ COR IDX ERR
V
-
0
-
0
V