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The Cortex®-M33 processor in the SSE-200 implements the Arm®v8-M architecture with Thumb®-2 technology.
See the Arm®v8-M Architecture Reference Manual for more information.
The Arm® TrustZone® technology in the Armv8-M architecture enables memory and peripheral spaces to be partitioned into Secure and Non-secure regions. No access to secure assets is possible from the Non-secure world.