Product manual

Preliminary CompactFlash Memory Card Product Manual

6.1.16 Seek - 7XH

Bit -> 7 6 5 4 3 2 1 0

Command (7)

7XH

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)

Feature (1)

This command is effectively a NOP command to

the CompactFlash Memory Card although it does

perform a range check of cylinder and head or LBA

address and returns an error if the address is out of

range.

6.1.17 Set Features - EFH

Bit -> 7 6 5 4 3 2 1 0

Command (7)

EFH

C/D/H (6)

X Drive X

Cyl High (5)

Cyl Low (4)

Sec Num (3)

Sec Cnt (2)

Config

Feature (1)

Feature

This command is used by the host to establish or

select certain features. Table 6-5 defines all features

that are supported. Please note that the

9AH feature is unique to the CompactFlash

Memory Card and are not part of the ATA

Specification.