The MultiZone® IoT Firmware is the quick and safe way to build secure IoT applications with RA6M3 microcontrollers. It provides secure access to IoT clouds, real-time monitoring, secure boot, and remote firmware updates. The built-in Trusted Execution Environment provides hardware-enforced separation to shield the execution of trusted applications from untrusted third-party libraries.


  • Fully integrated with Renesas e2 studio and Flexible Software Package (FSP)
  • Safe and quick way to add high-grade security and separation — Up to 4 "secure worlds"
  • Rapid development: Pre-integrated TEE, TLS/ECC, TCP/IP, MQTT, RTOS, FSP
  • Easy retrofit of existing hardware and software — No need for a system redesign
  • Convenient MPU based alternative to an Arm® TrustZone® upgrade
  • Convenient software license priced per design — No royalties, no GPL contamination



  • IoT
  • Healthcare
  • Metering
  • Industrial
  • Connectivity
  • Building automation


Software & Tool Pages

e² studioEclipse-based Renesas integrated development environment (IDE). [Support MCU/MPU: RA, RE, RX, RL78, RH850, Renesas Synergy, RZ] IDE and Coding Tool Renesas
Flexible Software Package (FSP)FSP is an enhanced software package designed to provide easy-to-use, scalable, high-quality software for embedded system designs using Renesas RA Family of Arm Microcontrollers. Note: FSP with e² studio Installer (Platform Installer) will install the e² studio tool, FSP packs, GCC toolchain and Segger J-Link drivers required to use this software. No additional installations are required. Software Package Renesas

Software Downloads

Title Type Date
ZIP8.44 MB
Software & Tools - Other


Title Type Date
Product Brief
PDF1.71 MB
Manual - Development Tools
Quick Start Guide

Videos & Training

Hex Five MultiZone IoT Firmware Live Demo

Get an overview of Hex Five Multizone IoT firmware and watch a live demo of it running multiple secure zones on the RA EK-RA6M3 development board.