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Low-power state encoding for partitioned FSMs with mixed synchronous/asynchronous state memory
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (Electronics design division, STC)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (Electronics design division, STC)
Responsible organisation
2008 (English)In: Integration, ISSN 0167-9260, Vol. 41, no 1, 123-134 p.Article in journal (Refereed) Published
Abstract [en]

Partitioned finite state machine (FSM) architectures in general enable low-power implementations and it has been shown that for these architectures, state memory based on both synchronous and asynchronous storage elements gives lower power consumption compared to their fully synchronous counterparts. In this paper we present state encoding techniques for a partitioned FSM architecture based on mixed synchronous/asynchronous state memory. The state memory, in this case, is composed of a synchronous local state memory and an asynchronous global state memory. The local state memory uses synchronous storage elements and is shared by all sub-FSMs. The global state memory operates asynchronously and is responsible for handling the interaction between sub-FSMs. Even though the partitioned FSM contains the asynchronous mechanism, its input/output behaviour is still cycle by cycle equivalent to the original monolithic synchronous FSM. In this paper, we discuss the low-power state encoding method for the implementation of partitioned FSM with mixed synchronous/asynchronous state memory. For the local state assignment a, what we call, state-bundling procedure is presented to enable states residing in different sub-FSMs to share the same state codes. Based on state-bundles, two state encoding techniques, in which one is the employment of binary encoding and the other is the further optimization for low power, are compared.

 

 

Place, publisher, year, edition, pages
2008. Vol. 41, no 1, 123-134 p.
Keyword [en]
Low-power, partitioned FSMs
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-2868DOI: 10.1016/j.vlsi.2007.02.002ISI: 000250491000013Scopus ID: 2-s2.0-34548503381Local ID: 2473OAI: oai:DiVA.org:miun-2868DiVA: diva2:27900
Projects
STC - Sensible Things that Communicate
Available from: 2008-09-30 Created: 2009-01-19 Last updated: 2011-02-06Bibliographically approved
In thesis
1. Automatic Synthesis of Partitioned FSMs Based on Mixed Synchronous/Asynchronous State Memory
Open this publication in new window or tab >>Automatic Synthesis of Partitioned FSMs Based on Mixed Synchronous/Asynchronous State Memory
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Sundsvall: Mittuniversitetet, 2007. 145 p.
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 20
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:miun:diva-8887 (URN)978-91-85317-47-9 (ISBN)
Public defence
2007-06-15, Sundsvall, 13:15 (English)
Opponent
Supervisors
Available from: 2009-05-06 Created: 2009-05-06 Last updated: 2011-02-06Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • vancouver
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More styles
Language
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  • Other locale
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Output format
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