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Table 38: Read Verify Sector(s)
Task File Register
7
6
5
4
3
2
1
0
COMMAND
40h or 41h
DRIVE/HEAD
1
LBA
1
D
Head (LBA 27:24)
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
Cylinder High (LBA23:16)
Cylinder Low (LBA15:8)
Sector Number (LBA7:0)
Sector Count
nu
6.23 Read Verify Ext (42h) 48bit LBA
This command is identical to the Read Sector(s) Ext command, except that DRQ is never set and no data is
transferred to the host. When the command is accepted, the CompactFlash TM Storage Card sets BSY.
When the requested sectors have been verified, the CompactFlash TM Storage Card clears BSY and generates an
interrupt. Upon command completion, the Command Block Registers contain the LBA of the last sector verified.
If an error occurs, the Read Verify Command terminates at the sector where the error occurs. The Command Block
Registers contain the LBA of the sector where the error occurred. The Sector Count Register contains the number
of sectors not yet verified.
Table 39: Read Multiple Ext
register write
previous
current
Task File Register
15:8
7
6
5
4
3
2
1
0
COMMAND
-
42h
DRIVE/HEAD
-
1
1
1
Drive
Reserved
LBA High
LBA Mid
LBA Low
SECTOR COUNT
FEATURES
LBA (47:40)
LBA (39:32)
LBA (31:24)
15:8
nu
LBA (23:16)
LBA (15:8)
LBA (7:0)
7:0
nu
6.24 Recalibrate (1Xh)
This command is effectively a NOP command to the Card and is provided for compatibility purposes. Table 40
defines the Recalibrate command Byte sequence.
Table 40: Recalibrate
Task File Register
7
6
5
4
3
2
1
0
COMMAND
1Xh
DRIVE/HEAD
1
LBA
1
D
nu
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
nu
nu
nu
nu
6.25 Security Disable Password (F6h)
This command requests a transfer of a single sector of data from the host. Table 41 defines the content of this
sector of information. If the password selected by word 0 matches the password previously saved by the device,
the device disables the lock mode. This command does not change the Master password that may be reactivated
later by setting a User password.
Table 41: Security Disable Password
Task File Register
7
6
5
4
3
2
1
0
COMMAND
F6h
DRIVE/HEAD
1
LBA
1
D
nu
CYLINDER HI
CYLINDER LOW
SECTOR NUM
SECTOR COUNT
FEATURES
nu
nu
nu
nu
nu
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 0.92
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
F-240_data_sheet_CA-HxBV_Rev092.doc
Page 31 of 56
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