TY - GEN
T1 - A dynamic differential reconfiguration circuit for optically differential reconfigurable gate arrays
AU - Watanabe, Minoru
AU - Fujime, Ryuji
AU - Kobayashi, Fuminori
PY - 2006
Y1 - 2006
N2 - An Optically Differential Reconfigurable Gate Array VLSI (ODRGA-VLSI) presents the advantage that it can be reconfigured more rapidly than other optically reconfigurable gate arrays (ORGAs). In an ORGA, reconfiguration contexts are stored in a holographic memory, which is addressed by a laser array, and read as light. The reconfiguration speed is proportional to the light intensity received in each photodiode on an ORGA-VLSI. In addition, the light intensity from a holographic memory is inversely proportional to the number of its lighting bits corresponding to bits of '1' from the diffraction characteristic of a holographic memory. Therefore, the bit-by-bit programmability of ODRGA-VLSI allows more rapid reconfiguration than for other ORGAs because the light power can be focused onto a reprogrammed area instead of a much larger area. However, the reconfiguration circuit to support bit-by-bit reconfiguration occupies a large implementation area of an ODRGA-VLSI chip. Therefore, a new dynamic reconfiguration circuit has been introduced into ODRGA-VLSIs to reduce the implementation area to realize a high gate-count ODRGA-VLSI. In this paper, the VLSI implementation of the dynamic reconfiguration circuit is shown using 0.35 μm CMOS process technology; a comparison to results from other optical reconfiguration circuits is presented.
AB - An Optically Differential Reconfigurable Gate Array VLSI (ODRGA-VLSI) presents the advantage that it can be reconfigured more rapidly than other optically reconfigurable gate arrays (ORGAs). In an ORGA, reconfiguration contexts are stored in a holographic memory, which is addressed by a laser array, and read as light. The reconfiguration speed is proportional to the light intensity received in each photodiode on an ORGA-VLSI. In addition, the light intensity from a holographic memory is inversely proportional to the number of its lighting bits corresponding to bits of '1' from the diffraction characteristic of a holographic memory. Therefore, the bit-by-bit programmability of ODRGA-VLSI allows more rapid reconfiguration than for other ORGAs because the light power can be focused onto a reprogrammed area instead of a much larger area. However, the reconfiguration circuit to support bit-by-bit reconfiguration occupies a large implementation area of an ODRGA-VLSI chip. Therefore, a new dynamic reconfiguration circuit has been introduced into ODRGA-VLSIs to reduce the implementation area to realize a high gate-count ODRGA-VLSI. In this paper, the VLSI implementation of the dynamic reconfiguration circuit is shown using 0.35 μm CMOS process technology; a comparison to results from other optical reconfiguration circuits is presented.
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U2 - 10.1109/MWSCAS.2006.382216
DO - 10.1109/MWSCAS.2006.382216
M3 - Conference contribution
AN - SCOPUS:34748816443
SN - 1424401739
SN - 9781424401734
T3 - Midwest Symposium on Circuits and Systems
SP - 94
EP - 98
BT - Proceedings of the 2006 49th Midwest Symposium on Circuits and Systems, MWSCAS'06
T2 - 2006 49th Midwest Symposium on Circuits and Systems, MWSCAS'06
Y2 - 6 August 2006 through 9 August 2007
ER -