Interfacing the MRF49XA transceiver to PIC microcontrollers

A transceiver is a device that can both transmit and receive, thus the word transceiver. A system that can send and receive data at the same time is called a full-duplex system. On the other hand, a system that can only send or receive at a time is called a half-duplex system. Thus, half-duplex systems use only one frequency carrier and the two ends share the same frequency. Full-duplex systems use two carrier frequencies, known as uplink frequency and downlink frequency.

This application note discusses what is required to successfully develop a half-duplex radio application using the Microchip Technology MRF49XA transceiver.

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