User's Manual

ACR1281S
 Advanced Card Systems Ltd. Page 24 of 56
12. Protocol Flow Examples
1) Activate a ICC
HOST RDR
1. HOST sends a frame

02 62 00 00 00 00 01 00 00 00 00 63 03
2. RDR sends back a
positive status frame
immediately
02 00 00 03 (positive status frame)

.. after some processing delay ..
3. RDR sends back the
response of the command
02 80 13 00 00 00 01 00 00 81 00 3B BE 11 00
00 41 01 38 00 00 01 00 00 00 00 00 01 90 00 6F
03

2) Activate a ICC (Incorrect Checksum, HOST )
HOST RDR
1. HOST sends a corrupted
frame

02 62 00 00 00 00 01 00 00 00 00 [Incorrect
Checksum] 03
2. RDR sends back a
negative status frame
immediately
02 FF FF 03 (negative status frame)

3. HOST sends the frame
again.

02 62 00 00 00 00 01 00 00 00 00 63 03
4. RDR sends back a
positive status frame
immediately
02 00 00 03 (positive status frame)

.. after some processing delay ..
5. RDR sends back the
response of the command
02 80 13 00 00 00 01 00 00 81 00 3B BE 11 00
00 41 01 38 00 00 01 00 00 00 00 00 01 90 00 6F
03

3) Activate a ICC (Incorrect Checksum, RDR)
HOST RDR
1. HOST sends a frame

02 62 00 00 00 00 01 00 00 00 00 63 03
2. RDR sends back a
positive status frame
immediately
02 00 00 03 (positive status frame)

.. after some processing delay ..
3. RDR sends back the
response (corrupted) of the
command
4. HOST sends a NAK
frame to get the response
again.
5. RDR sends back the
response of the command

02 80 13 00 00 00 01 00 00 81 00 3B BE 11 00
00 41 01 38 00 00 01 00 00 00 00 00 01 90 00
[Incorrect Checksum] 03
02 00 00 00 00 00 00 00 00 00 00 00 03
02 80 13 00 00 00 01 00 00 81 00 3B BE 11 00
00 41 01 38 00 00 01 00 00 00 00 00 01 90 00
6F
03

