5K320 SATA OEM Specification

14.35Set Features (EFh)

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

V

V

V V V V V V

Error

 

 

...See Below...

 

 

Sector Count

 

 

 

Note.1

 

 

 

Sector Count

-

-

-

-

-

-

-

-

LBA Low

-

-

-

-

-

-

-

-

LBA Low

-

-

-

-

-

-

-

-

LBA Mid

-

-

-

-

-

-

-

-

LBA Mid

-

-

-

-

-

-

-

-

LBA High

-

-

-

-

-

-

-

-

LBA High

-

-

-

-

-

-

-

-

Device

-

-

-

-

-

-

-

-

Device

-

-

-

-

-

-

-

-

Command

1

1

1

0

1

1

1

1

Status

 

 

...See Below...

 

 

Error Register

7

6

5

4

3

2

1

 

0

CRC

UNC

0

IDN

0

ABT

T0N

 

AM

 

 

 

 

 

 

 

 

N

0

0

0

0

0

V

0

 

0

Table 105 Set Features Command (EFh)

Status Register

7

6

5

4

3

2

1

0

BSY

RDY

DF

DSC

DRQ

COR

IDX

ERR

0

V

0

-

-

0

0

V

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

ABT will be set to 1 in the Error Register if the Feature register contains any undefined values. After power on reset, the device is set to the following features as default.

Write cache

 

: Enable

ECC bytes

 

: 4 bytes

Read look-ahead

 

: Enable

Reverting to power on defaults

: Disable

Device-initiated interface power state

: Disable

transition

 

 

Software setting preservation

: Enable

Output Parameters To The Device

 

Feature

Destination code for this command

02H

Enable write cache (Note.2)

03H

Set transfer mode based on value in sector count register

05H

Enable Advanced Power Management

06H

Enable Power-Up in Standby feature set

07H

Power-Up in Standby feature set device spin-up

10H

Enable use of Serial ATA feature

55H

Disable read look-ahead feature

66H

Disable reverting to power on defaults

82H

Disable write cache

 

85H

Disable Advanced Power Management (Note.3)

86H

Disable Power-UP in Standby feature set

90H

Disable use of Serial ATA feature

AAH

Enable read look-ahead feature

CCH

Enable reverting to power on defaults

Note 1.

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Hitachi HTS543216L9A300, HTS543232L9A300, HTS543280L9SA00, HTS543225L9A300 manual Set Features EFh, Set Features Command EFh