Synthesis of Serial Local Clock Controllers for Asynchronous Circuit Design(IP Design)(<Special Section>VLSI Design and CAD Algorithms)
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概要
- 論文の詳細を見る
Asynchronous controllers effectively control high concurrence of datapath operations for high speed. Signal Transition Graphs (STGs) can effectively represent these concurrent events. However, highly concurrent STGs cause the state explosion problem in asynchronous synthesis tools. Many small but highly concurrent STGs cannot be synthesized to obtain control circuits. Moreover, STGs also lead to some control-time over-head of the four-phase handshake protocol. In this paper, we propose a method for deriving the serial control nodes from Control Data Flow Graphs (CDFGs) such that the concurrence of datapath operations is still preserved. The STGs derived from the serialized control nodes are serial STGs which are simpler for synthesis than the concurrent STGs. We also propose an implementation using these serialized controllers to generate local clocks at any necessary times. The implementation results in very small control-time overhead. The experimental results show that the number of synthesis states is proportional to the number of control signals, and the circuits with satisfiable small control-time overhead are obtained.
- 社団法人電子情報通信学会の論文
- 2003-12-01
著者
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OZCAN Metehan
東京大学先端科学技術研究センター
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OZCAN Metehan
東京大学 先端科学技術研究センター
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NANYA Takashi
Research Center for Advanced Science and Technology, the University of Tokyo
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Kim E
Faculty Of Engineering The University Of Tokyo
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Oezcan M
Faculty Of Engineering The University Of Tokyo
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NAKAMURA Hiroshi
Faculty of Science and Technology, Ryukoku University
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SAITO Hiroshi
Faculty of Pharmaceutical Sciences, Tokyo University
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Sretasereekul Nattha
Faculty Of Engineering The University Of Tokyo
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Nanya T
Research Center For Advanced Science And Technology The University Of Tokyo
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Nanya Takashi
Faculty Of Engineering The University Of Tokyo
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Ozcan Metehan
Faculty Of Engineering The University Of Tokyo
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KIM Euiseok
Faculty of Engineering, the University of Tokyo
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IMAI Masashi
Faculty of Engineering, the University of Tokyo
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Sretasereekul N
Faculty Of Engineering The University Of Tokyo
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Saito H
Research Center For Advanced Science And Technology The University Of Tokyo
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Nakamura Hiroshi
Faculty Of Pharmaceutical Sciences Science University Of Tokyo
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Saito Hiroshi
Faculty Of Agriculture Iwate University
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