Securing Data at Rest with Renesas RA MCUs

This application note details how to implement secure data storage for embedded systems using Renesas RA Family Microcontroller Units (MCUs). It focuses on leveraging the Security MPU and Flash Access Window (FAW) hardware features to protect sensitive data residing on the device, commonly referred to as Data at Rest. The document provides comprehensive guidance and practical examples for developers aiming to enhance the security posture of their embedded designs.

Key Security Features Covered

• Data Access Control for internal flash and SRAM
• Write-once protection for critical data
• Read protection mechanisms
• Integration with development tools like e2 studio and Renesas Flexible Software Package (FSP)

Resources and Tools

This guide requires specific development tools and hardware:

• Development Tools: Renesas e2 studio IDE, Flexible Software Package (FSP), SEGGER J-Link drivers.
• Hardware: Renesas RA MCU evaluation kits (e.g., EK-RA6M3).

For more information on the Flexible Software Package, visit Renesas FSP.