DocumentCode :
3001684
Title :
A note on the relationship between signal probability and switching activity
Author :
Wu, Qing ; Pedram, Massoud ; Wu, Xunwei
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
fYear :
1997
fDate :
28-31 Jan 1997
Firstpage :
117
Lastpage :
120
Abstract :
In current probability calculation algorithms for power estimation, switching activity ESW of a node is calculated from its signal probability p by the following simple relation: ESW =2p(1-p). It is generally understood that this simple relationship holds under the temporal independence assumption for the node. This paper however shows that the above equation also gives the expected value of the transition activity in any sequence that satisfies the given signal probability (averaged over all such sequences). Therefore, this equation can be used to calculate the switching activity under more general conditions than previously thought
Keywords :
CMOS integrated circuits; circuit CAD; electric current; integrated circuit design; logic CAD; probability; switching; current probability calculation algorithms; power estimation; signal probability; switching activity; temporal independence assumption; Capacitance; Circuit testing; Clocks; Equations; Frequency estimation; Logic; Power dissipation; Power engineering and energy; Probability; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design Automation Conference, 1997. Proceedings of the ASP-DAC '97 Asia and South Pacific
Conference_Location :
Chiba
Print_ISBN :
0-7803-3662-3
Type :
conf
DOI :
10.1109/ASPDAC.1997.600070
Filename :
600070
Link To Document :
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