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5.1.23. Wear Level—F5H
Bit ->
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
This command is effectively a NOP command and only implemented for backward compatibility with earlier
SanDisk SDP series products. The Sector Count Register will always be returned with an 00H indicating Wear
Level is not needed.
5.1.24. Write Buffer—E8H
Bit ->
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
The Write Buffer command enables the host to overwrite contents of the CompactFlash Memory Card's sector
buffer with any data pattern desired. This command has the same protocol as the Write Sector(s) command and
transfers 512 bytes.
®
CompactFlash
Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION
Table 5-29. Wear Level
7
6
5
X
X
X
Table 5-30. Write Buffer
7
6
5
X
4
3
2
F5H
Drive
X
X
X
Completion Status
X
4
3
2
E8H
Drive
X
X
X
X
X
ATA Command Description
1
0
Flag
1
0
X
5-19
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