Table 89 Idle Command (E3H/97H); Idle (E3H/97H) - Hitachi HDS723020BLA642 Specifications

11.11 Idle (E3h/97h)

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

Table 89 Idle Command (E3h/97h)

The Idle command causes the device to enter Idle mode immediately, and set auto power down timeout
parameter (standby timer). And then the timer 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.
7 6 5 4 3 2 1
- - - - - - -
- - - - - - -
V V V V V V V
- - - - - - -
- - - - - - -
- - - - - - -
1 - 1 D - - -
1 1 1 0 0 0 1
4 3 2 1
IDN 0 ABT T0N AMN
0 0 V 0
Hitachi hard disk drive specifications
Command Block Input Registers
0 Register 7
- Data -
- Error
V Sector Count -
- Sector Number -
- Cylinder Low -
- Cylinder High -
- Device/Head -
1 Status
Status Register
0 7 6 5
BSY RDY DF
0 0 V 0
137
6 5 4 3 2 1
- - - - - -
...See Below...
- - - - - -
- - - - - -
- - - - - -
- - - - - -
- - - - - -
...See Below...
4 3 2 1
DSC DRQ COR IDX ERR
V - 0 -
0
-
-
-
-
-
-
0
V