Idle (E3H/97H); Figure 107. Idle Command (E3H/97H) - Hitachi ic35l060avv207-0 - Deskstar 60 GB Hard Drive Specifications

11.9 Idle (E3h/97h)

Command Block Output
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 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
Time-out Parameter. If it is zero, the automatic power down sequence is disabled. If
Sector Count
it is nonzero, the automatic power down sequence is enabled. The time-out interval
is shown below:
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
Registers
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
V V V V V V V V
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 - 1 D - - - -
1 1 1 0 0 0 1 1
4 3 2 1
IDN 0 ABT T0N
0 0 V 0
Value
0
1-240
241-251
252
253
254
255
Deskstar 180GXP hard disk drive specifications
Command Block Input
Register
Data
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
Status Register
0 7 6
AMN BSY RDY DF
0 0 V
Time-out
Timer disabled
Value x 5
(Value-240) x 30 minutes
21 minutes
8 hours
21 minutes 10 seconds
21 minutes 15 seconds
127
Registers
7 6 5 4 3 2 1 0
- - - - - - - -
see below
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
see below
5 4 3 2 1
DSC DRQ COR IDX
0 V – 0 –
0
ERR
V