User's Manual

ACR122L-ACS Design Specification
Version 0.03 19/05/2010
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ACR122L
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ACS
Example 4: To initialize an ISO 14443-4 Type B Tag (Tag Polling)
Step 1: Issue a “Direct Transmit” APDU.
The APDU Command should be “FF 00 00 00 05 D4 4A 01 03 00”
#In which,
Direct Transmit APDU = “FF 00 00 00”
Length of the PN532_Tag Command = “05”
PN532 Command (InListPassiveTarget Type B 106Kbps) = “D4 4A 01 03 00”
To send an APDU to the slot 0 (default), sequence number = 4.
HOST -> 02 6F 0A 00 00 00 00 04 00 00 00
FF 00 00 00 05 D4 4A 01 03 00
[Checksum] 03
RDR -> 02 00 00 03
RDR -> 02 81 14 00 00 00 00 04 00 00 00
D5 41 01 01 50 00 01 32 F4 00 00 00 00 33 81 81 01 21
90 00 [Checksum] 03
The APDU Response is
“D5 4B 01 01 50 00 01 32 F4 00 00 00 00 33 81 81 01 21 90 00”
#In which,
Response returned by the PN532 =
“D5 4B 01 01”
ATQB of the Type B Tag = “50 00 01 32 F4 00 00 00 00 33 81 81”
CRC-B = “01 21”
Status Code returned by the reader = “90 00”