5K320 SATA OEM Specification

14.20Read Native Max Address (F8h)

Block Output Registers Command

Register

7

6

5

4

3

2

1

0

Data

-

-

-

-

-

-

-

-

Feature

-

-

-

-

-

-

-

-

Sector Count

-

-

-

-

-

-

-

-

LBA Low

-

-

-

-

-

-

-

-

LBA Mid

-

-

-

-

-

-

-

-

LBA High

-

-

-

-

-

-

-

-

Device

-

L

-

-

-

-

-

-

Command

1

1

1

1

1

0

0

0

Command Block Input Registers

Register

7

6

5

4

3

2

1

0

Data

-

-

-

-

-

-

-

-

Error

 

 

...See Below...

 

 

Sector Count

-

-

-

-

-

-

-

-

LBA Low

V V V V V V

V V

LBA Mid

V V V V V V

V V

LBA High

V V V V V V

V V

Device

-

-

-

-

H

H

H

H

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 86 Read Native Max Address Command (F8h)

Status Register

7

6

5

4

3

2

1

0

BSY

RDY

DF

DSC

DRQ

COR

IDX

ERR

0

V

0

-

-

0

0

V

This command returns the native max LBA/CYL of HDD which is not affected by Set Max Address command.

The 48-bit native max address is greater than 268,435,455, the Read Native Max Address command return a value of 268,435,455.

Output Parameters To The Device

L

LBA mode.Indicates the addressing mode.L=0 specifies CHS mode and L=1 does LBA

D

addressing mode.

The device number bit. Indicates that the device number bit of the Device Register

-

should be specified. D=0 selects the master device and D=1 selects the slave device.

Indicates that the bit is not used.

Input Parameters From The Device

LBA Low

In LBA mode, this register contains native max LBA bits 0 - 7. (L=1)

LBA High/Mid

In CHS mode, this register contains native max LBA Low. (L=0)

In LBA mode, this register contains native max LBA bits 8 - 15 (Mid), 16 - 23 (High).

 

(L=1)

H

In CHS mode, this register contains native max cylinder number. (L=0)

In LBA mode, this register contains native max LBA bits 24 - 27. (L=1)

V

In CHS mode, this register contains native max head number.(L=0)

Valid. Indicates that the bit is part of an input parameter and will be set to 0 or 1 by the

-

device.

Indicates that the bit is not used.

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Hitachi HTS543232L9A300, HTS543280L9SA00, HTS543225L9A300 Read Native Max Address F8h, Read Native Max Address Command F8h