Implementation of data transfer and synchronous pulse operation for ARINC 659

Data Transfer on a shared resource for hard real-time safety-critical functions is a challenging task and demands extremely high reliability. The data bus is the main shared resource for Integrated Modular Avionics (IMA) inter-cabinet or intra-cabinet communication. The ARINC 659 (Aeronautical Radio, Inc.) is a proven standard for digital data transfer on backplane data bus within an IMA cabinet for commercial transport Aircraft. In this paper the design and implementation of data transfer, data decoding/encoding, data comparison, data validation, sync pulse detection, generation and measurement for ARINC 659 is presented. Hardware Description Language (HDL) Verilog is used to model the Design. Computer-aided Design (CAD) tools such as ModelSim, nLint, Debussy and Quartus are used for simulation, verification and implementation purpose. The results show that this implementation for data transfer and sync pulse operation is fully capable of providing desired interface to the Backplane Data Bus for ARINC 659.