SMC256BFY6 STMICROELECTRONICS [STMicroelectronics], SMC256BFY6 Datasheet - Page 77

• Manufacturer Part Number: SMC256BFY6
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

SMCxxxBF
10.23
10.24
Wear Level (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 77
Table 77.
Write Buffer (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 78
Table 78.
Command (7)
Command (7)
Sect Num (3)
Sect Num (3)
Sect Cnt (2)
Cyl High (5)
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
E8h
F5h
X
X
X
X
X
X
X
X
X
3
3
CF-ATA command description
2
2
Flag
X
1
1
0
0
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