The NFCT peripheral (referred to as the 'NFC peripheral' from now on) supports communication signal interface type A and 106 kbps bit rate from the NFC Forum. With appropriate software, the NFC peripheral can be used to emulate the listening device NFC-A as specified by the NFC Forum. Listed here are the main features for the NFC peripheral: • NFC-A listen mode operation • 13.56 MHz input frequency • Bit rate 106 kbps • Wake-on-field low power field detection (SENSE) mode • Frame assemble and disassemble for the NFC-A frames specified by the NFC Forum • Programmable frame timing controller • Integrated automatic collision resolution, CRC and parity functions
The signalling type NFC-A is based on ISO/IEC 14443A. It is similar to RFID type A. In the type-A based communication delay encoding (miller encoding) technique is employed along with AM modulation. Here binary data is transmitted with the data rate of about 106 Kbps using type A communication. Here binary signal must change from 0 % to 100 % to distinguish between binary 1 and binary 0 data informations.
