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A fast and accurate delay dependent method for switching estimation of large combinational circuits

✍ Scribed by S. Theoharis; G. Theodoridis; D. Soudris; C. Goutis; A. Thanailakis

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 240 KB
Volume: 48
Category: Article
ISSN: 1383-7621
DOI: 10.1016/s1383-7621(02)00120-0

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✦ Synopsis

Assuming inertial gate delay model, the first-order temporal correlation and the structural dependencies, a probabilistic method to estimate the switching activity of a combinational circuit, is introduced. To capture the first temporal correlation a novel mathematical model and the associated new formulas are derived. Also, a modified boolean function, which describes the logic and timing behavior of each signal, is introduced. To capture the structural dependencies an efficient new method to partition a large circuit into small independent sub-circuits is proposed. Finally, an algorithm that evaluates the switching activity of any circuit node is presented.

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