ARINC Specification 653P1-5

653P1-5 Avionics Application Software Standard Interface, Part 1, Required Services

Last Published: 
Monday, December 23, 2019
Document type: 

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 5 adds multicore processor service capabilities.

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