SLOA208B November 2014 – March 2019 TRF7970A , TRF7970A
A Type 4 tag must be compliant with the ISO 14443 specifications for communication, and it receives APDU commands based on the ISO 7816-4 specifications. The ISO 7816-4 commands that have been implemented within the example firmware are Select, Read Binary, and Update Binary. These are the only three required by the NFC Forum specifications for Type 4 tag platforms. The firmware could also be modified to add additional commands that may be needed for other applications, such as contactless payments.