ACR122L – Communication Protocol
Version 1.03
www.acs.com.hk
Page 46 of 57
>> 02 00 00 03
>> 02 80 05 00 00 00 00 01 00 00 00
D5 41 [00] 90 00 [Checksum] 03
Note:
Restore the value of Block
05
(cancel the prior Increment or Decrement operation).
<< 02 6F 0A 00 00 00 00 01 00 00 00
FF 00 00 00 05 D4 40
01
C2
05
[Checksum] 03
Step 4. Read the content of Block
05
.
<< 02 6F 0A 00 00 00 00 01 00 00 00
FF 00 00 00 05 D4 40
01
30
05
[Checksum] 03
>> 02 00 00 03
>> 02 80 15 00 00 00 00 01 00 00 00
D5 41 [00]
65 00 00 00 9A FF FF FF 65 00 00 00 05 FA 05 FA
90 00 [Checksum] 03
In which, the value =
101 (dec)
Step 5. Copy the value of Block
05
to Block
06
(dec)
.
<< 02 6F 0A 00 00 00 00 01 00 00 00
FF 00 00 00 05 D4 40
01
C2
05
[Checksum] 03
>> 02 00 00 03
>> 02 80 05 00 00 00 00 01 00 00 00
D5 41 [00] 90 00
[Checksum] 03
<< 02 6F 0A 00 00 00 00 01 00 00 00
FF 00 00 00 05 D4 40
01
B0
06
[Checksum] 03
>> 02 00 00 03
>> 02 80 05 00 00 00 00 01 00 00 00
D5 41 [00] 90 00 [Checksum] 03
Step 6. Read the content of Block
06
.
<< 02 6F 0A 00 00 00 00 01 00 00 00
FF 00 00 00 05 D4 40
01
30
06
[Checksum] 03
>> 02 00 00 03
>> 02 80 15 00 00 00 00 01 00 00 00
D5 41 [00]
65 00 00 00 9A FF FF FF 65 00 00 00 05 FA 05 FA
90 00 [Checksum] 03
In which, the value =
101 (dec).
The Adr “
05 FA 05 FA
” tells us the value is copied from Block 05.
Note:
Please refer to the MIFARE specification for more detailed information.