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Partial Bus-Invert Coding for Power Optimization of Application-Specific Systems
Cited 50 time in
Web of Science
Cited 69 time in Scopus
- Authors
- Issue Date
- 2001
- Citation
- IEEE Trans. VLSI Syst., vol. 9, pp.377-383
- Keywords
- Digital complementary metal–oxide–semiconductor ; low-power dissipation ; memory ; switching activity ; system level ; tradeoffs
- Abstract
- This paper presents two bus coding schemes for power optimization
of application-specific systems: Partial Bus-Invert coding and its
extension to Multiway Partial Bus-Invert coding. In the first scheme, only
a selected subgroup of bus lines is encoded to avoid unnecessary inversion
of relatively inactive and/or uncorrelated bus lines which are not included
in the subgroup. In the extended scheme, we partition a bus into multiple
subbuses by clustering highly correlated bus lines and then encode each
subbus independently. We describe a heuristic algorithm of partitioning a
bus into subbuses for each encoding scheme. Experimental results for various
examples indicate that both encoding schemes are highly efficient for
application-specific systems.
- ISSN
- 1063-8210
- Language
- English
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