How to access pcsc-compliant tags (iso 14443-4), Table 44, Iso 7816-4 apdu format – ACS AET62 NFC Reader with Fingerprint Sensor User Manual

Page 23: Table 45, Iso 7816-4 response format (data + 2 bytes), Table 46, Common iso 7816-4 response codes

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8.1. How to Access PCSC-Compliant Tags (ISO 14443-4)?

Basically, all ISO 14443-4 compliant cards (PICCs) would understand the ISO 7816-4 APDUs. The
AET62 Reader just has to communicate with the ISO 14443-4 compliant cards through exchanging
ISO 7816-4 APDUs and Responses. AET62 will handle the ISO 14443 Parts 1-4 Protocols internally.

Mifare 1K, 4K, MINI and Ultralight tags are supported through the T=CL emulation. Just simply treat
the Mifare tags as standard ISO 14443-4 tags. For more information, please refer to topic “PICC
Commands for Mifare Classic Memory Tags”.

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

Table 44: ISO 7816-4 APDU Format

Response

Data Out

Result Response

Data

SW1 SW2

Table 45: ISO 7816-4 Response Format (Data + 2 Bytes)

Results

SW1

SW2

Meaning

Success 90 00

The operation is completed successfully.

Error

63 00

The operation is failed.

Table 46: Common ISO 7816-4 Response Codes


Typical sequence may be:
-

Present the Tag and Connect the PICC Interface

-

Read / Update the memory of the tag


Step 1) Connect the Tag

Step 2) Send an APDU, Get Challenge.
<< 00 84 00 00 08
>> 1A F7 F3 1B CD 2B A9 58 [90 00]

Hint:
For ISO14443-4 Type A tags, the ATS can be obtained by using the APDU “FF CA 00 00 01”

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AET62 Reference Manual

Version 1.00

Page 23 of 35

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