Texas Instruments, with the Stellaris® family of ARM Cortex-M3-based microcontrollers (MCUs), supports ARM's Cortex Microcontroller Software Interface Standard (CMSIS), a standardized hardware abstraction layer for the Cortex-M3 processor series. The purpose of the CMSIS initiative is to standardize a fragmented industry on one superior hardware and software microcontroller architecture.
The CMSIS enables consistent and simple software interfaces to the processor for silicon vendors and middleware providers, simplifying software re-use, reducing the learning curve for new microcontroller developers and reducing the time to market for new devices.
