Title :
Glitch power minimization by gate freezing
Author :
Benini, L. ; Micheli, G. De ; Macii, A. ; Macii, E. ; Poncino, M. ; Scarsi, R.
Author_Institution :
Bologna Univ., Italy
Abstract :
This paper presents a technique for glitch power minimization in combinational circuits. The total number of glitches is reduced by replacing some existing gates with functionally equivalent ones (called F-gates) that can be "frozen" by asserting a control signal. A frozen gate cannot propagate glitches to its output. An important feature of the proposed method is that it can be applied in-place directly to layout-level descriptions; therefore, it guarantees very predictable results and minimizes the impact of the transformation on circuit size and speed.
Keywords :
circuit optimisation; combinational circuits; logic gates; minimisation; F-gates; combinational circuits; control signal; frozen gate; gate freezing; glitch power minimization; layout-level descriptions; transformation; Combinational circuits; Cost function; Delay estimation; Design optimization; Logic circuits; Minimization; Optimization methods; Timing; Uncertainty; Wiring;
Conference_Titel :
Design, Automation and Test in Europe Conference and Exhibition 1999. Proceedings
Conference_Location :
Munich, Germany
Print_ISBN :
0-7695-0078-1
DOI :
10.1109/DATE.1999.761113