Abstract
Demand for fast dynamic reconfiguration has increased since dynamic reconfiguration can accelerate the performance of implementation circuits. Such dynamic reconfiguration requires two important features: fast reconfiguration and numerous contexts. However, fast reconfigurations and numerous contexts share a trade-off relation on current VLSIs. Therefore, optically reconfigurable gate arrays (ORGAs) have been developed to resolve this dilemma. ORGAs can realize a large virtual gate count that is much larger than those of current VLSI chips by exploiting the large storage capacity of a holographic memory. Also, ORGAs can realize fast reconfiguration through use of large bandwidth optical connections between a holographic memory and a programmable gate array VLSI. Among such developments, we have been developing dynamic optically reconfigurable gate arrays (DORGAs) that realize a high gate density VLSI using a photodiode memory architecture. This paper presents the first demonstration of a nine-context DORGA architecture. Furthermore, this paper presents experimental results: 1.2-8.97μs reconfiguration times and 66-221μs retention times.
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Nakajima, M., Watanabe, M. (2009). Fast Optical Reconfiguration of a Nine-Context DORGA. In: Becker, J., Woods, R., Athanas, P., Morgan, F. (eds) Reconfigurable Computing: Architectures, Tools and Applications. ARC 2009. Lecture Notes in Computer Science, vol 5453. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00641-8_14
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DOI: https://doi.org/10.1007/978-3-642-00641-8_14
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