5K250 (SATA) OEM Specification
Page 97 of 171
14.9
Idle (E3h/97h)
Command Block Output Registers
Command Block Input Registers
Register
7 6 5 4 3 2 1 0 Register
7 6 5 4 3 2 1 0
Data
- - - -
-
-
-
- Data
- - - - - -
-
-
Feature -
-
-
-
-
-
-
-
Error
...See
Below...
Sector
Count
V V V V V V V V Sector
Count
- - - - - -
-
-
LBA
Low
- - - -
-
-
-
- LBA
Low
- - - - - -
-
-
LBA
Mid
- - - -
-
-
-
- LBA
Mid
- - - - - -
-
-
LBA High
- - - -
-
-
-
- LBA
High
- - - - - -
-
-
Device
- - - -
-
-
-
- Device
- - - - - -
-
-
Command
1 1 1 0 0 0 1 1 Status
...See
Below...
Error Register
Status Register
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
CRC UNC 0
IDN
0 ABT T0N
AM
N
BSY RDY
DF
DSC DRQ
COR IDX
ERR
0 0 0 0 0 V 0 0
0 V 0 V - 0 0 V
Table 64 Idle Command (E3h/97h)
When the power save mode is Standby mode, the Idle command causes the device to enter
performance Idle mode immediately, and set auto power down timeout parameter(standby timer).
And then the timer starts counting down. When the device’s power save mode is already any idle
mode, the device keep that mode.
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
Timeout Parameter. If zero, the timeout interval(Standby Timer) is disabled. If other than
zero, the timeout interval is set for (Timeout Parameter x5) seconds.
The device will enter Standby mode automatically if the timeout interval expires with no
device access from the host. The timeout interval will be reinitialized if there is a device
access before the timeout interval expires.