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SMC032AF Datasheet(PDF) 70 Page - Numonyx B.V

Part # SMC032AF
Description  32 Mbyte, 64 Mbyte, 128 Mbyte, 256 Mbyte and 512 Mbyte 3.3 V / 5 V supply CompactFlash??card
PDF  82 Pages
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Manufacturer  NUMONYX [Numonyx B.V]
Direct Link  http://www.numonyx.com
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SMC032AF Datasheet(HTML) 70 Page - Numonyx B.V

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CF-ATA command description
SMCxxxAF
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9.22
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 defines the Wear Level command byte sequence.
9.23
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 defines the Write Buffer command byte sequence.
Table 74.
Wear Level
Bit
7
6
5
432
1
0
Command (7)
F5h
C/D/H (6)
X
Drive
Flag
Cyl High (5)
X
Cyl Low (4)
X
Sect Num (3)
X
Sect Cnt (2)
Completion Status
Feature (1)
X
Table 75.
Write Buffer
Bit
7
6
5432
1
0
Command (7)
E8h
C/D/H (6)
X
Drive
X
Cyl High (5)
X
Cyl Low (4)
X
Sect Num (3)
X
Sect Cnt (2)
X
Feature (1)
X



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