New GALS technique for datapath architectures

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Abstract

A novel Globally Asynchronous Locally Synchronous (GALS) technique applicable to datapath architectures is presented. It is based on a request-driven operation of locally synchronous blocks. Inactivity of the request line is detected with a special time-out circuitry. When time-out occurs, clocking of the locally synchronous block is handed over to a local ring oscillator. Based on this concept, a practical hardware implementation of an asynchronous wrapper is proposed. The simulation results presented demonstrate the potential and performance of the proposed GALS architecture. © Springer-Verlag Berlin Heidelberg 2003.

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Krstić, M., & Grass, E. (2003). New GALS technique for datapath architectures. Lecture Notes in Computer Science (Including Subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2799, 161–170. https://doi.org/10.1007/978-3-540-39762-5_18

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