SanDisk SDCFH-004G Product Manual - Page 78

Table 5-33, Translate Sector Information, Table 5-34, Wear Level, Table 5-35, Write Buffer

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ATA Command Description SanDisk CompactFlash Card OEM Product Manual Table 5-33 represents the information in the buffer. This command is unique to SanDisk CompactFlash Memory cards. Table 5-33 Translate Sector Information Address 00 01-02 03 04-07 08 09-0A 0B 0C-1FF Information Head Cylinder Sector LBA Chip Block Page Reserved 5.1.24 Wear Level-F5H 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. Table 5-34 Wear Level Bit 7 6 5 4 3 2 1 0 Command (7) F5H C/D/H (6) X X X Drive Flag Cyl High (5) X Cyl Low (4) X Sec Num (3) X Sec Cnt (2) Completion Status Feature (1) X 5.1.25 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 5-35 Write Buffer Bit 7 6 5 4 3 2 1 0 Command (7) E8H C/D/H (6) X Drive X Cyl High (5) X Cyl Low (4) X Sec Num (3) X Sec Cnt (2) X Feature (1) X 02/07, Rev. 12.0 5-24 © 2007 SanDisk Corporation

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ATA Command Description
SanDisk CompactFlash Card OEM Product Manual
Table 5-33
represents the information in the buffer. This command is unique to SanDisk
CompactFlash Memory cards.
Table 5-33
Translate Sector Information
Address
Information
00
Head
01-02
Cylinder
03
Sector
04-07
LBA
08
Chip
09-0A
Block
0B
Page
0C-1FF
Reserved
5.1.24
Wear Level–F5H
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.
Table 5-34
Wear Level
Bit
7
6
5
4
3
2
1
0
Command (7)
F5H
C/D/H (6)
X
X
X
Drive
Flag
Cyl High (5)
X
Cyl Low (4)
X
Sec Num (3)
X
Sec Cnt (2)
Completion Status
Feature (1)
X
5.1.25
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 5-35
Write Buffer
Bit
7
6
5
4
3
2
1
0
Command (7)
E8H
C/D/H (6)
X
Drive
X
Cyl High (5)
X
Cyl Low (4)
X
Sec Num (3)
X
Sec Cnt (2)
X
Feature (1)
X
02/07, Rev. 12.0
5-24
© 2007 SanDisk Corporation