The NuMaker-PFM-M2351 (ref NK-BEDM231) is a development board based on NuMicro®-M2351 microcontroller. Nuvoton NuMicro® M2351 secure microcontroller series is empowered by Arm® Cortex®-M23 core with TrustZone® for Armv8-M architecture, which elevates the traditional firmware security to the new level of robust software security.