CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION70
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) X
Feature (1) X
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) X
Cyl Low (4) X
Sec Num (3) X
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.
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