Standby (E2H/96H); Table 124 Standby Command (E2H/96H) - Hitachi Travelstar 2.5 inch SATA HTS722020K9A300 Oem Specification

14.40

Standby (E2h/96h)

Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7 6 5 4
CRC UNC 0 IDN
0 0 0 0

Table 124 Standby Command (E2h/96h)

The Standby command causes the device to enter the Standby Mode immediately, and set auto
power down timeout parameter(standby timer).
When this command is issued, the device confirms the completion of the cached write commands.
Then the device is spun down, but the interface remains active.
If the device is already spun down, the spin down sequence is not executed.
During the Standby mode the device will respond to commands, but there is a delay while
waiting for the spindle to reach operating speed.
The timer starts counting down when the device returns to Idle mode.
Output Parameters To The Device
Sector Count
7K200 SATA OEM Specification
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
V V V V V V V V
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 1 1 0 0 0 1 0
3 2 1 0
0 ABT T0N AM
N
0 V 0 0
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.
When the automatic power down sequence is enabled,
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.
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
7 6 5
BSY RDY DF
0 V 0
156/173
7 6 5 4 3 2 1 0
- - - - - - - -
...See Below...
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
...See Below...
Status Register
4 3 2
DSC DRQ COR IDX ERR
V - 0
1 0
0 V