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5.12 Idle Immediate (E1h/95h)
Table 38: Idle Immediate command (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
The Idle Immediate command causes the device to enter Performance 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 the host commands immediately.
The Idle Immediate command will not affect the auto power down time-out parameter.
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
1 1 1 0 0 0 0 1
4
3
2
1
IDN
0
ABT T0N AMN
0
0
V
0
Deskstar 7K500 Hard Disk Drive Serial ATA Addendum
Command Block Input Registers
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
0
7
6
5
BSY RDY DF DSC DRQ
0
0
V
0
73
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
Status Register
4
3
2
1
COR IDX
V
-
0
-
0
ERR
V
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