Cortex-M23 Processor

The SAM L10/L11 implement the ARM® Cortex®-M23 processor, based on the ARMv8-M Baseline Architecture, which is the smallest and most energy efficient ARM processor with ARM TrustZone® security technology.

TrustZone® for ARMv8-M provides hardware-enforced security isolation between trusted and the untrusted resources on a Cortex™-M23 based device, while maintaining the efficient exception handling.

The implemented ARM Cortex-M23 is revision r1p0.

The ARM Cortex-M23 core has two bus interfaces:

Single 32-bit AMBA®-5 AHB-Lite system interface that provides connections to peripherals and memories.
Single 32-bit I/O port bus interfacing to the PORT and Crypto Accelerator peripherals with 1-cycle load and store.

Note: For more information refer to www.arm.com