CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION74
6.1.22 Translate Sector - 87H
Bit -> 7 6 5 4 3 2 1 0
Command (7) 87H
C/D/H (6) 1 LBA 1 Drive Head (LBA 27-24)
Cyl High (5) Cylinder High (LBA 23-16)
Cyl Low (4) Cylinder Low (LBA 15-8)
Sec Num (3) Sector Number (LBA 7-0)
Sec Cnt (2) X
Feature (1) X
This command allows the host a method of
determining the exact number of times a user sector
has been erased and programmed. The controller
responds with a 512 byte buffer of information on
the desired cylinder, head and sector with the
actual Logical Address along with the Hot Count
for that sector. Table 6-6 represents the
information in the buffer. Please note that this
command is unique to the SanDisk CompactFlash
Memory Card.
Table 6-6 Translate Sector Information
Address Information
00h-01h Cylinder MSB (00), Cylinder LSB (01)
02h Head
03h Sector
04h-06h LBA MSB (04) - LSB (06)
07h-12h Reserved
13h Erased Flag (FFh) = Erased 00h = Not Erased
14h - 17h Reserved
18h-1Ah Hot Count MSB (18) - LSB (1A)
1Bh-1FFh Reserved
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