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7K200 SATA OEM Specification

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14.40 Standby (E2h/96h)

Command Block Output Registers

Command Block Input Registers

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 0 Status

...See

Below...

Error Register

Status Register

7 6 5 4 3 2 1 0

CRC UNC 0

IDN

0 ABT T0N

BSY RDY

DF DSC DRQ

COR IDX

ERR

0 0 0 0 0 V 0 0

0 V 0 V - 0 0 V

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

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.