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11th IEEE International Symposium on Asynchronous Circuits and Systems (2005)
New York City, New York, USA
Mar. 14, 2005 to Mar. 16, 2005
ISSN: 1522-8681
ISBN: 0-7695-2305-6
pp: 76-85
Christian Stahl , Humboldt Universit?
A Globally Asynchronous - Locally Synchronous (GALS) technique for application in wireless communication systems is proposed and evaluated. The GALS wrappers are based on a request-driven operation with an embedded time-out function. A formally verified GALS wrapper is deployed for the ?GALSification? of a baseband processor for WLAN. Details of the GALS partitioning, implementation and the design-flow are discussed. Furthermore, a test strategy based on built-in self-test (BIST) is suggested. The described baseband processor was fabricated and successfully tested. The GALS design is compared with a clock-gated, synchronous version. Advantages for system integration are achieved along with a 1% reduction in dynamic power consumption, a 30% reduction in peak power supply current, and 5 dB reduction in spectral noise.

C. Stahl, M. Krstić and E. Grass, "Request-Driven GALS Technique for Wireless Communication System," 11th IEEE International Symposium on Asynchronous Circuits and Systems(ASYNC), New York City, New York, USA, 2005, pp. 76-85.
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