A Method of Mapping Finite State Machine into PCA Plastic Parts

Minoru INAMORI  Hiroshi NAKADA  Ryusuke KONISHI  Akira NAGOYA  Kiyoshi OGURI  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E85-A   No.4   pp.804-810
Publication Date: 2002/04/01
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section of Selected Papers from the 14th Workshop on Circuits and Systems in Karuizawa)
asynchronous design,  finite state machine,  mapping,  programmable device,  

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This paper proposes a method for mapping a finite state machine (FSM) into a two-dimensional array of LUTs, which is a part of our plastic cell architecture (PCA). LSIs based on the PCA have already implemented as asynchronous devices. Functions that run on the LSIs must also be asynchronous. In order to make good use of the LSIs, a system that translates functions into circuit information for the PCA is needed. We introduce a prototype system that maps an asynchronous FSM onto the PCA. First, a basic mapping method is considered, and then we create three methods to minimize circuit size. Some benchmark suites are synthesized to estimate their efficiency. Experimental results show that all the methods can map an asynchronous FSM onto the PCA and that the three methods can effectively reduce circuit size.