Hitachi IC35L060AVV207 Datasheet Page 141

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11.9 Idle (E3h/97h)
see below
Status
1 1 1 0 0 0 1 1
Command
- - - - - - - -
Device/Head
1 - 1 D - - - -
Device/Head
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder Low
- - - - - - - -
Cylinder Low
- - - - - - - -
Sector Number
- - - - - - - -
Sector Number
- - - - - - - -
Sector Count
V V V V V V V V
Sector Count
see below
Error
- - - - - - - -
Feature
- - - - - - - -
Data
- - - - - - - -
Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input
Registers
Command Block Output
Registers
V0V0V000V00000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCCRC
0123456701234567
Status RegisterError Register
Figure 107. Idle Command (E3h/97h)
The Idle command causes the device to enter Idle mode immediately and to set the auto power down
time-out parameter (standby timer). And the timer then starts counting down.
When the Idle mode is entered, 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.
Output parameters to the device
Sector Count Time-out Parameter. If it is zero, the automatic power down sequence is disabled. If
it is nonzero, the automatic power down sequence is enabled. The time-out interval
is shown below:
21 minutes 15 seconds255
21 minutes 10 seconds254
8 hours253
21 minutes252
(Value-240) x 30 minutes241-251
Value x 51-240
Timer disabled0
Time-out Value
When the automatic power down sequence is enabled, the drive will enter Standby
mode automatically if the time-out interval expires with no drive access from the
host. The time-out interval will be reinitialized if there is a drive access before the
time-out interval expires
Deskstar 180GXP hard disk drive specifications
127
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