LBA Low LBA High/Mid
H
LBA Low LBA High/Mid
H

Travelstar 5K160 (SATA) Hard Disk Drive Specification

14.18Read Multiple (C4h)

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

 

 

 

-

-

 

-

 

-

 

-

 

-

-

-

 

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

 

 

 

 

-

 

L

 

-

 

-

 

 

H

 

H

H

H

 

Device

 

 

 

 

-

 

-

 

 

-

-

 

H

H

 

H

 

H

Command

 

 

 

1

 

1

 

0

0

 

0

 

1

0

0

 

Status

 

 

 

 

 

 

 

 

...See Below...

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Error Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Status Register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

6

5

4

 

3

 

 

 

2

 

 

1

 

 

0

 

 

7

 

6

5

4

3

 

 

 

2

 

 

 

1

 

 

 

0

 

CRC

 

UNC

0

IDN

 

0

 

 

 

ABT

 

T0N

AM

 

BSY

 

RDY

DF

DSC

DRQ

 

 

COR

 

IDX

 

ERR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

V

0

V

 

0

 

 

 

 

 

V

 

0

 

 

0

 

 

0

 

V

0

V

-

 

 

 

0

 

 

 

0

 

 

 

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 62 Read Multiple Command (C4h)

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

The sectors are transferred through the Data Register 16 bits at a time. Command execution is identical to the Read Sectors command except that an interrupt is generated for each block (as defined by the Set Multiple command) instead of for each sector.

Output Parameters To The Device

Sector CountThe number of continuous sectors to be transferred. If zero is specified, then 256 sectors will be transferred.

The sector number of the first sector to be transferred. (L=0) In LBA mode, this register contains LBA bits 0 - 7. (L=1) 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) The head number of the first sector to be transferred. (L=0)

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

Input Parameters From The Device

Sector CountThe number of requested sectors not transferred. This will be zero, unless an unrecoverable error occurs.

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

In LBA mode, this register contains current LBA bits 0 - 7. (L=1) The cylinder number of the last transferred sector. (L=0)

In LBA mode, this register contains current LBA bits 8-15 (Mid), 16-23 (High). (L=1) The head number of the last transferred sector. (L=0)

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

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Hitachi HTS541680J9SA00, HTS541640J9SA00, HTS541616J9SA00, HTS541660J9SA00 manual Read Multiple C4h, Read Multiple Command C4h
Page 105 Page 107

HTS541640J9SA00, HTS541616J9SA00, HTS541680J9SA00, HTS541612J9SA00, HTS541660J9SA00 specifications

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