This standard defines a general-purpose Application/Executive (APEX) software interface between the Operating System of an avionics computer and the application software. The interface requirements between the application software and operating system services are defined in a manner that enables the application software to control the scheduling, communication, and status of internal processing elements. Supplement 4 adds multicore processor service capabilities.
SAE ARINC653P1-4-2015 history
2015SAE ARINC653P1-4-2015 AVIONICS APPLICATION SOFTWARE STANDARD INTERFACE PART 1 REQUIRED SERVICES