The Cypherbridge SDKPac includes SDKs and toolkits to fit a wide range of embedded applications and vertical markets. SDKPac for Renesas RA is integrated with Flexible Software Package (FSP) based development kits for a total project ready solution.


  • uSSL/TLS 1.2 server and client, secure sockets
  • dHTTPS WebServer ROM file system, forms, cookies, SSI, CGI, CSS, file transfer
  • uSSH server, client, user account, and host key controls
  • IoT Device Client, TLS secure uMQTT 3.1.1 to IoT cloud service
  • uSMTP SMTP client including STARTTLS and implicit TLS, MIME binary file and telemetry attachment
  • uRADIUS client authentication and authorization with managed credentials server
  • Platform kit for EK-RA6Mx targets: network, debug port, MAC edit, NV config, system monitor, and event handlers
  • uCrypt library integrated with RA SCE (Secure Crypto Engine)
  • Supported on toolchains including& e2 studio



  • IoT Cloud Edge gateways
  • Smart buildings
  • Energy metering
  • Industrial control
  • Medical devices
  • Smart white goods


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


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Product Brief
Product Brief
Quick Start Guide
Cypherbridge SDKPac™ and uLoadXL™

The Cypherbridge uLoadXL secure boot and safe software update software solution is integrated with the RA FSP and the SDKPac toolkit for RA Family devices.