Smart Card Reader Driver Program Reference Manual
rev 1.1 Sept, 2003
Advanced Card Systems Ltd.
Page 24 of 34
2.3.3.13 ACI_ClearProtect
The ACI_ClearProtect command is available for the AM256 card and the AM4KP card only. It
can be used to set all memory address to “not write-protected”. The parameter structure is
defined as follow:
Field
Value
Description
CLA 0x00
Instruction
class
INS
ACI_ClearProtect
Instruction code
P1
0x00
must be zero
P2
0x00
must be zero
Lc
0x00
No input data for this command
DataIn
-
No input data
Le
0x00
No output data expected from this command
2.3.3.14 ACI_LockProtect
The ACI_LockProtect command is available for the AM256 card and the AM4KP card only. It
can be used to disable access to the write-protection register irreversibly. The contents of the
write-protection register is not changed and the currently write-protection memory area cannot
be modified any more. The parameter structure is defined as follow:
Field
Value
Description
CLA 0x00
Instruction
class
INS
ACI_LockProtect
Instruction code
P1
0x00
must be zero
P2
0x00
must be zero
Lc
0x00
No input data for this command
DataIn
-
No input data
Le
0x00
No output data expected from this command
