1The ARM Cortex Microcontroller Software Interface Standard (CMSIS) defines a 2set of standard interfaces to ARM Cortex family SOCs. In particular, the 3CMSIS-CORE component standardizes the software interface to core and peripheral 4registers, as well as exception names and the system clock frequency. Multiple 5SOC vendors, including NXP and Nordic Semiconductor, include the CMSIS-CORE 6header files in their SOC header files. These SOC header files are in turn used 7by the vendor's peripheral drivers. 8 9http://www.arm.com/products/processors/cortex-m/cortex-microcontroller-software-interface-standard.php 10 11The sources in this directory are imported from 12https://github.com/ARM-software/CMSIS_5.git 13 14The current version supported in Zephyr is 15https://github.com/ARM-software/CMSIS_5/releases/tag/5.7.0 16