Multi-input Asynchronous Arbiter with Parallel Connection of Input Signals. Arbitration in Conditions of Superscalarity

Abstract

The research is devoted to problems caused by the impossibility to satisfy the requests for immediate service of a subscriber of a given resource in the conditions of various forms of parallelism. It is stated that the solution to the problem consists in abandoning a parallel organization and moving to a sequential one, which requires the introduction of a certain order of service, as well as equipment for its implementation. A new solution is presented, implementing an order of asynchronous arbitration based on the understanding of the competition of service requests over time. Based on this line, a system for synthesis of a multi-input asynchronous arbiter with parallel joining of input events is presented. The form of parallelism known as superscalarity is specifically considered. The study showed that arbitrage in the context of a superscalar resource is a new and unexplored task. Its decision requires arbitration of the second event in an order, and if necessary, subsequent ones in time.