ACR122T – Application Programming Interface
Version 2.02
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Page 24 of 45
6.3.
Get the Firmware Version of the Reader
This is used to retrieve the firmware version of the reader.
Command Format (5 Bytes)
Command
Class
INS
P1
P2
Le
Get Firmware Version
0xFFh
0x00h
0x48h 0x00h 0x00h
Response Format (10 Bytes)
Response
Data Out
Result
Firmware Version
E.g. Response = 41 43 52 31 32 32 55 32 30 31h (Hex) = ACR122T201 (ASCII)