User's Manual

T
T
T
S
S
S
3
3
3
2
2
2
M
M
M
~
~
~
1
1
1
G
G
G
C
C
C
F
F
F
8
8
8
0
0
0
80X CompactFlash Card
Transcend Information Inc.
48
5.6.4 Erase Sector(s) - C0h
This command is used to pre-erase and condition data sectors in advance of a Write without Erase or Write Multiple
without Erase command. There is no data transfer associated with this command but a Write Fault error status can
occur.
Bit -> 7 6 5 4 3 2 1 0
Command (7)
C0h
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)
Sector Number (LBA 7-0)
Sec Cnt (2) Sector Count
Feature (1) X
5.6.5 Format Track - 50h
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 Sec Cnt register (0=256). The use of this command is not recommended.
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) X