HGST TRAVELSTAR 80GN 30GB ATA5 08K0910 User Manual

Travelstar 80GN Hard Disk Drive Specification

130

 

The Read Multiple command reads one or more sectors of data from disk media and then transfers the data from 
the device to the host.

The sectors are transferred through the Data Register 16 bits at a time. The command execution is identical to the 
Read Sectors command with one exception: an interrupt is generated for each block—as defined by the Set Multi-
ple command—instead of for each sector.

This indicates the number of continuous sectors to be transferred. If zero is specified, 256 
sectors will be transferred.

LBA Low 

This indicates the sector number of the first sector to be transferred. (L = 0) 

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

LBA High/Low 

This indicates the cylinder number of the first sector to be transferred. (L = 0) 

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

This indicates the head number of the first sector to be transferred. (L = 0) 

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

Sector Count 

This indicates the number of requested sectors not transferred. This number is zero unless 
an unrecoverable error occurs. 

LBA Low 

This indicates the sector number of the last transferred sector. (L = 0) 

In LBA mode, this register contains current LBA bits 0–7. (L = 1)

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

V V V V V V V V

Sector Count

V V V V V V V V

LBA Low

V V V V V V V V

LBA Low

V V V V V V V V

LBA Mid

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

LBA High

V V V V V V V V

Device

1 L 1 D H H H H

Device

- - - - - H H H H  

Command

1 1 0 0 0 1 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

V

0

V

0

V

0

V

0

V

0

V

-

0

-

V