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  • Is the Corelink SSE-200 Subsystem available for Cortex M23?

    This question was raised in the 'How to implement a secure IoT system on ARMv8-M' webinar, view all the questions in the round up blog post. 

     

  • Can you explain why you propose having two cores in your CoreLink SSE-200?

    This question was raised in the 'How to implement a secure IoT system on ARMv8-M' webinar, view all the questions in the round up blog post. 

  • What is TrustZone for ARMv8-M?

    As a product manager for the Cortex-M33, I see this question pop up a lot. Below is my version of the answer.

    Characteristics of TrustZone technology

    • TrustZone is the security foundation for billions of ARM Cortex-A processor-based systems
    • TrustZone…

  • Which of the Cortex-M processors support TrustZone for ARMv8-M today?

    Another question that I see come up once in a while.

     

    Both the Cortex-M33 and the Cortex-M23 support TrustZone for ARMv8-M.

    Cortex-M23 is the smallest lowest power TrustZone Cortex processor from ARM.

    Cortex-M33 is a general purpose TrustZone processor…

  • What is the top level difference in features between Cortex-M23 and Cortex-M33?

    Both processors have TrustZone for ARMv8-M. The following table compares the other top level features.

     

     

    *Performance numbers are preliminary

  • Link to download gcc support for TrustZone for ARMv8-M

    * All GCC 6 features, plus latest mainline features:
      + Full ARMv8-M support including atomics and Security Extensions
      + ARM PURECODE support for ARMv7-M and ARMv8-M Mainline
      + Co-processor intrinsics support
      + Cortex-M23 and Cortex-M33 support
      + -mthumb…

  • What is the top level difference in features between Cortex-M33 and Cortex-M4?

    This is a very common question.

    The diagram below is a pictorial description of the differences followed by some explanations.

    Cortex-M33 v Cortex-M4 features

    Starting from the bottom:

    • Cortex-M33 is an implementation of the ARMv8-M architecture. Full details are in my blog on the 5…

  • What is the top level difference in features between Cortex-M23 and Cortex-M0+?

    This is a very common question too.

    The diagram is a pictorial description of the differences followed by some explanations.

     

     

    Starting from the bottom:

     

    -Cortex-M23 is an implementation of the ARMv8-M architecture. Full details here.

    -Using the same debug…

  • Technical Reference Manual for Cortex-M33 is released to the web

    For those looking for more technical information for the Cortex-M33 the TRM is now posted in info center

     

    http://infocenter.arm.com/help/topic/com.arm.doc.100230_0002_00_en/cortex_m33_trm_100230_0002_00_en.pdf

     

    The Cortex-M23 TRM was posted a while b…

  • [Cortex-M33 FVP]:SecureFault with SAU disable

    Hello,

    I am using Cortex-M33 FVP model to run the Keil RTX TrustZoneV8M RTOS example.
    Have also tried to experiment with the memory map configuration and the corresponding SAU region programming for NS/S patitioning and the behaviour is as expected.

    However…