HGST TRAVELSTAR 80GN 30GB ATA5 08K0910 ユーザーズマニュアル

Travelstar 80GN Hard Disk Drive Specification

153

The Set Feature command establishes the following parameters which affect the execution of certain features as 
shown in the table below.

ABT will be set to 1 in the Error Register if the Feature register contains any undefined values.

After the power on reset or hard reset the device is set to the following features as default. 

Register

7 6 5 4 3 2 1 0

Register

7 6 5 4 3 2 1 0

Data

- - - - - - - -

Data

- - - - - - - -

Feature

V V V V V V V V

Error

see below

Sector Count

see note 1

Sector Count

- - - - - - - -

LBA Low

- - - - - - - -

LBA Low

- - - - - - - -

LBA Mid

- - - - - - - -

LBA Mid

- - - - - - - -

LBA High

- - - - - - - -

LBA High

- - - - - - - -

Device

1 - 1 D - - - -

Device

- - - - - - - -

Command

1 1 1 0 1 1 1 1

Status

see below

7

6

5

4

3

2

1

0

7

6

5

4

3

2

1

0

CRC

UNC

0

IDN

0

ABT

T0N

AMN

BSY RDY

DF

DSC

DRQ

COR IDX

ERR

0

0

0

0

0

V

0

0

0

V

0

-

-

0

-

V

Write cache

Enable

ECC bytes

4 bytes

Read look-ahead

Enable

Reverting to power on defaults

Disable

Address Offset mode

Disable

Enable write cache (See note 2)

Set transfer mode based on value in sector count register

Reserved (See note 3)

Enable Address Offset mode

40 bytes of ECC apply on Read Long/Write Long commands

Disable read look-ahead feature

Disable reverting to power on defaults

Disable write cache

Reserved (See note 3)

Disable Address Offset mode

Enable read look-ahead feature

4 bytes of ECC apply on Read Long/Write Long commands

Enable reverting to power on defaults