smc256af Numonyx, smc256af Datasheet - Page 70

• Manufacturer Part Number: smc256af
• Description: 32 Mbyte, 64 Mbyte, 128 Mbyte, 256 Mbyte And 512 Mbyte 3.3 V / 5 V Supply Compactflash? Card
• Manufacturer: Numonyx

CF-ATA command description
9.22
9.23
70/82
Wear Level command (F5h)
This command is effectively a NOP command and only implemented for backward
compatibility. The Sector Count register will always be returned with a 00h indicating Wear
Level is not needed.
Table 74
Table 74.
Write Buffer command (E8h)
The Write Buffer command enables the host to overwrite contents of the 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.
Table 75
Table 75.
Command (7)
Command (7)
Sect Num (3)
Sect Num (3)
Cyl High (5)
Sect Cnt (2)
Sect Cnt (2)
Cyl High (5)
Cyl Low (4)
Cyl Low (4)
Feature (1)
Feature (1)
C/D/H (6)
C/D/H (6)
Bit
Bit
defines the Wear Level command byte sequence.
defines the Write Buffer command byte sequence.
Wear Level
Write Buffer
7
7
X
6
X
6
5
5
Drive
Drive
Completion Status
4
4
F5h
E8h
X
X
X
X
X
X
X
X
X
3
3
2
2
Flag
X
1
1
SMCxxxAF
0
0