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The increasing legal requirements for safety, emission reduction, fuel economy and onboard diagnostic systems are forcing the market to increase complexity. This complexity must not be a reason for slowing down the introduction of new systems. For efficiency, car manufacturers and system suppliers want to focus on their core competencies and leave the micro-controller complexity to silicon vendors. Competition forces system suppliers to jump to the most “function/cost” effective solution. For this reason it is very dangerous to move in the direction of specific solutions which require a large amount of effort to modify. Therefore the market goes in the direction of standards with clear interfaces. The approach presented overcomes these obstacles by introducing a Configurable I/O System (CIOS) layer. The CIOS encompasses basic software driver objects for engine management systems encapsulating the standard sensors and actuators.