Hitachi 100GB 7200 RPM HTE721010G9SA00 User Manual

Travelstar E7K100 (SATA) Hard Disk Drive Specification

118 

This command returns the native max LBA/CYL of the drive which is not effected by the Set Max ADDRESS 
command. Even if the Address Offset mode is enabled, the native max LBA/CYL is returned.

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

LBA mode. This indicates the addressing mode. L = 0 specifies CHS mode and L = 1 
specifies the LBA addressing mode.

This is the device number bit. Indicates that the device number bit of the Device/Head 
Register should be specified. D = 0 selects the master device and D = 1 selects the slave 
device. 

-

 

Indicates that the bit is not used.

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

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

In LBA mode this register contains the native max LBA bits 8–15 (Mid) and bits 16–23 
(High). (L = 1)

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

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

In CHS mode this register contains the native maximum head number. (L = 0) 

V 

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

This indicates that the bit is not used

Register

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

- - - - - - - -

Sector Count

- - - - - - - -

LBA Low

- - - - - - - -

LBA Low

V V V V V V V V

LBA Mid

- - - - - - - -

LBA Mid

V V V V V V V V

LBA High

- - - - - - - -

LBA High

V V V V V V V V

Device

- L - - - - - -

Device

- - - - H H H H 

Command

1 1 1 1 1 0 0 0

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