Overview The goals of a secure IoT device Security - How can I secure my device? Security - Platform Security Architecture Security - Arm TrustZone technology Security - CryptoCell and CryptoIsland technologies Security - Mitigating against physical attacks Security - Implementing additional security IP - What IP do I need to make a secure IoT device? IP - The processor IP - The AMBA components IP - The CryptoCell IP - Power control, timers, Wi-Fi, and display Build - How does the IP fit together? Build - Starting to develop an example TBSA-M system Build - Select AMBA components to link the IP together Build - Connect to RAM, ROM, and eFlash memory Build - Connect the CryptoCell-312 Build - Add power control to the SoC Build - Add the timers as peripherals Build - Add a theoretical Wi-Fi and display component Build - Integrate the IP into the SoC Build - Add your own registers for the SoC Build - Arm subsystems SSE-123 - Exploring the SSE-123 Example Subsystem SSE-123 - SSE-123 features SSE-123 - Working with the SSE-123 SSE-123 - SSE-123 timers SSE-123 - SSE-123 registers SSE-123 - Debugging with the SSE-123 SSE-123 - The SSE-123 I/O port SSE-123 - Ideas for extending the SSE-123 Related information Next steps
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Next steps

This guide provides the essential knowledge that you must have to design and build an SoC for a secure IoT device. The IP discussed in this guide, including the subsystems, is all available through Arm Flexible Access. You can review the options for Arm Flexible Access here.

After you have familiarized yourself with the PSA, you can carry out a threat and security analysis for your use case. The analysis will help you decide on the IP you require to meet the security requirements of your SoC. You might also want to review the software and firmware requirements of your system at this point.

The next step is to explore the SSE-123 subsystem and decide whether you can use it as the basis for your SoC. You will find that the SSE-123 is designed using the same IP introduced in this guide. If the SSE-123 fits your vision, you will gain considerable time savings.

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