42.1 Overview

The PIC32CX-BZ3 provides an on-chip IEEE 802.15.4-compliant and Bluetooth Low Energy 6.0 interface with integrated transceivers. The Wireless Subsystem block comprises the following modules:
  • Single ultra-low power 2.4 GHz ISM band RF transceiver
  • Bluetooth modem
  • Bluetooth link layer
  • 802.15.4 modem
  • 802.15.4 MAC

With integrated Ultra Low-Power 2.4 GHz ISM band single transceiver, modem and MAC, the radio supports both 802.15.4 stack and Bluetooth 6.0 link protocols. An on-board intelligent Radio Arbiter hardware allows the establishment of Bluetooth or 802.15.4 stack links with programmable QoS. The RF transceiver includes switching power amplifiers architecture and a TR switch. Therefore, medium to high power application use cases are supported without external FEM.

The RTOS running on the Cortex M4F CPU handles the arbitration between the application, the Bluetooth link stack, the 802.15.4 stack and miscellaneous maintenance tasks.