42.1 Overview

The PIC32CX-BZ2 and the WBZ45 support on-chip IEEE® 802.15.4 and 802.15.3 compliant Zigbee®, Bluetooth® Low Energy 5.2 interface with integrated transceivers. The Wireless Subsystem block is comprised of on-chip Zigbee and Bluetooth 5.0 BBP/MAC, shared RF transceiver and Radio Arbiter. This section provides key features of the on-chip Wireless modules.

With integrated Ultra Low Power 2.4 GHz ISM band single transceiver, dual modem and dual MAC, the Radio supports dual Zigbee and Bluetooth 5.2 link protocols. An on-board intelligent Radio Arbiter HW module establishes both the links simultaneously using a single Radio Transmit/Receive with programmable QoS. The RF transceiver includes dual Power Amplifiers architecture and TR Switch. Therefore, medium to high power application use cases are supported without external FEM.

Arbitration between Application, Bluetooth link stack, Zigbee link stack and miscellaneous maintenance tasks are handled on the Cortex M4F (w/ DSP, FPU) CPU using available on-chip system memory resources via RTOS.