%0 Journal Article
	%A Masafumi Kondo and  Yoichiro Sato and  Kazuyuki Tashiro and  Tomoyuki Yokogawa and  Michiyoshi Hayase
	%D 2009
	%J International Journal of Electronics and Communication Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 30, 2009
	%T A Ring Segmented Bus Architecture for Globally Asynchronous Locally Synchronous System
	%U https://publications.waset.org/pdf/15607
	%V 30
	%X Recently, most digital systems are designed as GALS (Globally Asynchronous Locally Synchronous) systems. Several architectures have been proposed as bus architectures for a GALS system : shared bus, segmented bus, ring bus, and so on. In this study, we propose a ring segmented bus architecture which is a combination of segmented bus and ring bus architecture with the aim of throughput enhancement. In a segmented bus architecture, segments are connected in series. By connecting the segments at the end of the bus and constructing the ring bus, it becomes possible to allocate a channel of the bus bidirectionally. The bus channel is allocated to the shortest path between segments. We consider a metastable operation caused by asynchronous communication between segments and a burst transfer between segments. According to the result of simulation, it is shown that the GALS system designed by the proposed method has the desired operations.

	%P 1410 - 1415