Product manual

Preliminary CompactFlash Memory Card Product Manual

6.1.4 Format Track - 50H

Bit -> 7 6 5 4 3 2 1 0

Command (7)

50H

C/D/H (6)

1 LBA 1 Drive Head (LBA 27-24)

Cyl High (5)

Cylinder High (LBA 23-16)

Cyl Low (4)

Cylinder Low (LBA 15-8)

Sec Num (3)

X (LBA 7-0)

Sec Cnt (2)

Count (LBA mode only)

Feature (1)

This command writes the desired head and

cylinder of the selected drive with a FFh pattern.

To remain host backward compatible, the

CompactFlash Memory 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 Card. If

LBA=1 then the number of sectors to format is

taken from the Sec Cnt register (0=256).

6.1.5 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)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Feature (1)

The Identify Drive command enables the host to

receive parameter information from the

CompactFlash Memory 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 6-3.

All reserved bits or words are zero. Table 6-3 is the

definition for each field in the Identify Drive

Information.