HANBit

HFDOM44KRxxx

URL:www.hbe.co.kr

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HANBit Electronics Co., Ltd.

Rev. 1.0 (December, 2004)

This command writes the desired head and cylinder of the selected drive with a vendor unique data pattern

(typically FFh or 00h).

To remain host backward compatible, the CompactFlash Storage Card expects a sector buffer of data from the

host to follow the command with the same protocol as the Write Sector(s) command although the information in the

buffer is not used by the CompactFlash Storage Card.

If LBA=1 then the number of sectors to format is taken from the SecCnt register (0=256). The use of this command

is not recommended.

Identify Drive - ECh

Bit->

7

6

5

4

3

2

1

0

Command(7)

ECh

C/D/H(6)

X

X

X

Drive

X

Cyl High(5)

X

Cyl Low(4)

X

Sec Num(3)

X

Sec Cnt(2)

X

Feature(1)

X

Identify Drive

The Identify Drive command enables the host to receive parameter information from the

CompactFlash Storage Card. This command has the same protocol as the Read Sector(s)

command. The parameter words in the buffer have the arrangement and meanings defined in

Table . All reserved bits or words are zero. Table 40 is the definition for each field in the

Identify Drive Information.

Table: Identify Drive Information

Word

Address

Default

Value

Total

Bytes

Data Field Type Information

0

848Ah

2

General configuration – signature for the CompactFlash Storage Card

1

xxxxh

2

Default number of cylinders

2

0000h

2

Reserved

3

00xxh

2

Default number of heads

4

xxxxh

2

Number of unformatted bytes per track

5

xxxxh

2

Number of unformatted bytes per sector

6

xxxxh

2

Default number of sectors per track

7-8

xxxxh

4

Number of sectors per card (Word 7 = MSW , word 8 = LSW)

9

xxxxh

2

Vendor Unique

10-19

aaaa

20

Serial number in ASCII (Right Justified )

20

xxxxh

2

Buffer type

21

xxxxh

2

Buffer size in 512 byte increments

22

0004h

2

# of ECC bytes passed on Read/Write Long Commands

23-26

aaaa

8

Firmware revision in ASCII. Big Endian Byte Order in Word

27-46

aaaa

40

Model number in ASCII (Left Justified) Big Endian Byte Order in Word

47

xxxxh

2

Maximum number of sectors on Read/Write Mutliple command

48

0000h

2

Double Word not supported