IBM Deskstar 120 GXP, Specifications

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11.8 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
V – 0 – V 0 V 0 0 0 V 0 0 0 0 0
ERR IDX COR DRQ DSC DF RDY BSY AMN T0N ABT 0 IDN 0 UNC CRC
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Status Register Error Register
Figure 106. 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 seconds 255
21 minutes 10 seconds 254
8 hours 253
21 minutes 252
(Value-240) x 30 minutes 241-251
Value x 5 1-240
Timer disabled 0
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 120GXP hard disk drive specifications
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