User's Manual

ACR122L-ACS Design Specification
Version 0.03 19/05/2010
Page
20
of
50
ACR122L
-
ACS
Tip: If the authentication failed, the error code [XX] will be returned.
[00] = Valid, other = Error. Please refer to Error Codes Table for
more details.
Tip: For KEY B Authentication
<< 02 6F 14 00 00 00 00 00 01 00 00 00
FF 00 00 00 0F D4 40 01 61 04 FF FF FF FF FF FF F6 8E 2A 99 [Checksum]
03
Step 3) Read the content of Block 04
<< 02 6F 0A 00 00 00 00 01 00 00 00
FF 00 00 00 05 D4 40 01 30 04 [Checksum] 03
>> 02 00 00 03
>> 02 80 05 00 00 00 00 01 01 00 00
D5 41 [00] 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 90 00
[Checksum] 03
In which, Block Data = 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
Step 4) Update the content of Block 04
<< 02 6F 1A 00 00 00 00 01 00 00 00
FF 00 00 00 15 D4 40 01 A0 04 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D
0E 0F 10 [Checksum] 03
>> 02 00 00 03
>> 02 6F 0A 00 00 00 00 01 00 00 00
FF 00 00 00 05 D5 41 [00] 90 00 [Checksum] 03
Step 5) Halt the tag (optional)
<< 02 6F 08 00 00 00 00 01 00 00 00
FF 00 00 00 03 D4 44 01 [Checksum] 03
>> 02 00 00 03
>> 02 80 05 00 00 00 00 01 01 00 00
D5 45 [00] 90 00 [Checksum] 03