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Automatic Power Regulation Based on an Asynchronous Activity Detection and its Application to ANOC Node Leakage Reduction

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4 Author(s)
Thonnart, Y. ; CEA-LETI, MINATEC, Grenoble ; Beigne, E. ; Valentian, A. ; Vivet, P.

Asynchronous circuits are well-known for their benefits in terms of dynamic power savings, because asynchronous logic does not switch when inactive. Nevertheless, in deep-submicron technologies, leakage currents have become an increasing issue, and thus asynchronous circuits need to focus on static power consumption reduction. In this paper, we propose an innovative way to detect incoming asynchronous activity. Associated to an automatic power regulation, it efficiently reduces the supply voltage and thus both energy per op. and leakage currents. The proposed technique has been applied to an asynchronous network-on-chip node, and successfully implemented in a STM 65 nm technology.

Published in:

Asynchronous Circuits and Systems, 2008. ASYNC '08. 14th IEEE International Symposium on

Date of Conference:

7-10 April 2008