Dynamically Reconfigurable Logic LSI: PCA-2

Hideyuki ITO  Ryusuke KONISHI  Hiroshi NAKADA  Hideyuki TSUBOI  Yuichi OKUYAMA  Akira NAGOYA  

IEICE TRANSACTIONS on Information and Systems   Vol.E87-D   No.8   pp.2011-2020
Publication Date: 2004/08/01
Online ISSN: 
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Reconfigurable Systems)
Category: Recornfigurable Systems
dynamically reconfigurable hardware,  autonomous reconfiguration,  asynchronous circuit,  parallel computing,  

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Design points and the results seen in the development of a dynamically reconfigurable logic LSI, PCA-2, are described. PCA-2 enables the realization of flexible parallel processing based on the autonomous reconfiguration of logic circuits. To realize this feature, we introduce an asynchronous circuit design and a homogeneous cell array structure. PCA-2 represents an advance on the earlier LSI, PCA-1. Cutting edge CMOS technology is used to realize the structural merits of PCA hardware. Compared to PCA-1, PCA-2 offers 16 times greater integration level for programmable logic. Due to miniaturization and design refinement, PCA-2 provides a 6-fold increase in the circuit frequency of the configuration controller and a 3-fold increase in the operating frequency of the programmable logic. The results gained confirm the effects of refinement and the suitability of our architecture for device miniaturization.