Standby Immediate (E0H/94H); Figure 130. Standby Immediate Command (E0H/94H) - IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive Specifications

2.5 inch ata/ide hard disk drive
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13.35 Standby Immediate (E0h/94h)

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

Figure 130. Standby Immediate command (E0h/94h)

The Standby Immediate command causes the device to enter the Standby mode immediately.
When this command is issued, the device confirms the completion of the cached write commands before it
asserts the INTRQ. Following the INTRQ the interface remains active and the device is spun down.
If the device is already spun down, the spin down sequence is not executed.
During the Standby mode the device will respond to commands, however there will be a delay while
waiting for the spindle to reach operating speed.
The Standby 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 0
4
3
2
1
IDN
0
ABT
T0N
AMN
0
0
V
0
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
Command Block Input Registers
Register
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
187
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
4
3
2
1
0
DSC
DRQ
COR
IDX
ERR
V
-
0
-
V

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