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 Secure Crypto Engine (SCE)
  • Supported on toolchains including e2 studio




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


Software & Tool Pages

Software title
Software type
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
e² studio
Eclipse-based Renesas integrated development environment (IDE). [Support MCU/MPU: RA, RE, RX, RL78, RH850, Renesas Synergy, RZ]
IDE and Coding Tool Renesas
2 items


Type Title Date
Product Brief PDF 224 KB 日本語
Product Brief PDF 274 KB
Other Log in to Download PDF 414 KB
Quick Start Guide Log in to Download PDF 412 KB
4 items
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.