CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION
74
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