SPRADK2 November   2024 F29H850TU , F29H859TU-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Supplemental Online Information
  6. 3SSU Overview
  7. 4Key Concept Definitions
  8. 5Safety and Security Goals
  9. 6System Design
  10. 7Configuring the SSU
    1. 7.1 Flash SECCFG Region
    2. 7.2 SSU Development Life Cycle
    3. 7.3 Using the SysConfig Tool
      1. 7.3.1 Enabling System Security Configuration
      2. 7.3.2 Configuring Application Modules
      3. 7.3.3 Configuring Special Modules
        1. 7.3.3.1 LINK2 Configuration
        2. 7.3.3.2 LINK1 Configuration
        3. 7.3.3.3 Adding Shared Memory
      4. 7.3.4 Defining Sandboxes
  11. 8Summary
  12. 9References

Abstract

The Safety and Security Unit (SSU) is an integrated module in C29x devices that enables run-time functional safety and cybersecurity protections for application code. The features of the SSU enable robust Freedom from Interference (FFI), secure task isolation, debug security and firmware update protections in hardware, maintaining low-latency performance needed for real-time control systems. The SysConfig tool, provided as part of the MCU SDK, provides an easy-to-use graphical user interface (GUI) for configuring the SSU and enabling safety and security protections in user applications. This application note examines the various features of the SSU, and how embedded system developers can use the SysConfig to design and implement run-time safety and security in real-time applications.