Abstract

The general bus system architecture consists of masters, slaves, arbiter, decoder and so on in shared bus. As several masters can`t use a bus concurrently, arbiter plays an role in bus arbitration. In compliance with the selection of arbitration method, The efficiency of bus usage can be determined. Fixed Priority, Round-Robin, TDMA, Lottery arbitration are studied in conventional arbitration method. In this paper, we draw the performance comparison of TDMA and Lottery bus arbitration policy developed recently due to farious conditions and propose the methods of performance improvement.

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