The RF4Control stack uses Atmel's IEEE 802.15.4 MAC as the underlying layer. For detailed information about the MAC layer see AVR2025 MAC Software Package.

RF4Control Stack Architecture

The modularity of Atmel's MAC software implementation allows the use of different hardware for the RF4CE applications. The hardware for the microcontroller and the board is abstracted by the Platform Abstraction Layer (PAL). The transceiver hardware is addressed by the Transceiver Abstraction Layer (TAL).