HGST Travelstar 7K500 BE, 320GB 0A79103 ユーザーズマニュアル

製品コード

0A79103

7K500 OEM Specification

Page 159 of 176

14.41

14.41 Standby (E2h/96h)

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

CRC UNC

IDN

ABT T0N AM

BSY RDY

DSC DRQ COR IDX ERR

Table 125 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.