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Commands
20
13-
02
49
Set password mode (PM)
Command:
Response:
The command
PM
activates and deactivates the password mode of the relevant
channel. In the password mode, the password is transferred to the data carrier
before each read/write access. If a data carrier is addressed with the wrong
password, then even the other data areas on the data carrier can no longer be
accessed.
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (18h)
0
0
0
1
1
0
0
0
Byte 1
Reserved/Ident channel/Toggle bit
-
-
-
-
<Channel>
<T>
Byte 2
Password mode
0
0
0
0
0
0
0
<P>
Byte 3
not used
-
-
-
-
-
-
-
-
Byte 4
not used
-
-
-
-
-
-
-
-
Byte 5
not used
-
-
-
-
-
-
-
-
Byte 6
not used
-
-
-
-
-
-
-
-
Byte 7
not used
-
-
-
-
-
-
-
-
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (18h)
0
0
0
1
1
0
0
0
Byte 1
Reserved/Ident channel/Toggle bit
-
-
-
-
<Channel>
<T>
Byte 2
Status
<Status>
Byte 3
Reply counter
<ReplyCounter>
Byte 4
not used
-
-
-
-
-
-
-
-
Byte 5
not used
-
-
-
-
-
-
-
-
Byte 6
not used
-
-
-
-
-
-
-
-
Byte 7
not used
-
-
-
-
-
-
-
-
Password mode "off":
<P>=0 (0b) (deactivated)
Password mode "on":
<P>=1 (1b) (activated)