
Data Sheet
CompactFlash Card
SST48CF008 / 016 / 024 / 032 / 048 / 064 / 096 / 128 / 192 / 256
47
2001 Silicon Storage Technology, Inc.
S71125-03-000
9/01
375
3.2.1.13 Read Verify Sector(s) - 40H or 41H
This command is identical to the Read Sectors command, except that DRQ is never set and no data is
transferred to the host. When the command is accepted, the CompactFlash card sets BSY.
When the requested sectors have been verified, the CompactFlash card clears BSY and generates an
interrupt. Upon command completion, the Command Block Registers contain the cylinder, head, and
sector number of the last sector verified.
If an error occurs, the verify terminates at the sector where the error occurs. The Command Block
Registers contain the cylinder, head and sector number of the sector where the error occurred. The
Sector Count Register contains the number of sectors not yet verified.
3.2.1.14 Recalibrate - 1XH
This command is effectively a NOP command to the CompactFlash card and is provided for
compatibility purposes.
3.2.1.15 Request Sense - 03H
This command requests extended error information for the previous command. Table 3-9 defines the
valid extended error codes for the CompactFlash card Series product. The extended error code is
returned to the host in the Error Register.
Bit ->
7
6
5
4
3
2
1
0
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
40H or 41H
Drive
Cylinder High (LBA 23-16)
Cylinder Low (LBA 15-8)
Sector Number (LBA 7-0)
Sector Count
X
1
LBA
1
Head (LBA 27-24)
Bit ->
7
6
5
4
3
2
1
0
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
1XH
1
LBA
1
Drive
X
X
X
X
X
X
Bit ->
7
6
5
4
3
2
1
0
Command (7)
C/D/H (6)
Cyl High (5)
Cyl Low (4)
Sec Num (3)
Sec Cnt (2)
Feature (1)
03H
1
X
1
Drive
X
X
X
X
X
X