Hitachi HTS541680J9SA00, HTS541640J9SA00 manual Write Multiple C5h, Write Multiple Command C5h

LBA Low LBA High/Mid

H

LBA Low LBA High/Mid

H

Travelstar 5K160 (SATA) Hard Disk Drive Specification

14.50Write Multiple (C5h)

Command Block Output Registers

Register	7		6		5		4		3		2		1		0
Data	-	-		-		-		-			-	-			-
Feature	-		-		-		-		-		-		-		-
Sector Count	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 High	V		V		V		V		V		V		V		V
Device	-		L	-			-	H			H	H			H
Command	1		1		0		0		0	1			0	1

Command Block Input Registers

Register

7

6

5

4

3

2

1

0

Data

-

-

-

-

-

-

-

-

Error

...See Below...

Sector Count

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 High

V

V

V

V

V

V

V

V

Device

-

-

-

-

H

H

H

H

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	0	0	V	0	V	0	0	0	V	V	V	-	0	0	V
Figure	105 Write Multiple Command (C5h)

The Write Multiple command transfers one or more sectors from the host to the device, then the data is written to the disk media.

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

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)

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

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