ACM1252U-Y3
– Reference Manual
Version 1.03
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5.2.5.
Accessing PCSC-compliant tags (ISO 14443-4)
All ISO 14443-4 compliant cards (PICCs) understand the ISO 7816-4 APDUs. The ACM1252U-Y3
reader just has to communicate with the ISO 14443-4 compliant cards through exchanging ISO 7816-
4 APDUs and responses. The ACM1252U-Y3 will handle the ISO 14443 Parts 1-4 Protocols
internally.
MIFARE Classic (1K/4K), MIFARE Mini and MIFARE Ultralight tags are supported through the T=CL
emulation. Simply treat the MIFARE tags as standard ISO 14443-4 tags. For more information, please
refer to
Section 5.2.4 PICC Commands for MIFARE® Classic (1K/4K) Memory Cards
ISO 7816-4 APDU Format
ISO 7816-4 Response Format (Data + 2 bytes)
Response
Data Out
Result
Response Data
SW1
SW2
Common ISO 7816-4 Response Codes
Results
SW1 SW2
Meaning
Success
90 00h
The operation was completed
successfully.
Error
63 00h
The operation failed.
Typical sequence may be:
1. Present the tag and connect the PICC Interface.
2. Read/Update the memory of the tag.
To do this:
1. Connect the tag.
The ATR of the tag is 3B 88 80 01
00 00 00 00
33 81 81
00 3Ah.
In which,
The Application Data of ATQB = 00 00 00 00,
protocol information of ATQB = 33 81 81
.
It is
an ISO 14443-4 Type B tag.
2. Send an APDU, Get Challenge.
<< 00 84 00 00 08h
>> 1A F7 F3 1B CD 2B A9 58h [90 00h]
Note: For ISO 14443-
4 Type A tags, the ATS can be obtained by using the APDU “FF CA 01
00 00h.
”
Command
Class
INS
P1
P2
Lc
Data In
Le
ISO 7816
Part 4
Command
Length of the
Data In
Expected
length of the
Response
Data
