Title
Glitch Power Reduction via Clock Skew Scheduling
Abstract
Dynamic power consumption is directly related tothe number of the signal transitions in a circuit. Glitches are undesired spurious transitions caused by inputs of a gate arriving at different times, instead of arriving together, thus causing unnecessary power dissipation. Our objective in this paper is to reduce the number of glitches in a circuit to reduce dynamic power. We do so by clock skew scheduling, where different flipflopsreceive clocks at different times. We formulate thescheduling as an Integer linear Programming problem andderive vector-independent clock skew schedule to reduce glitches. We also propose linear objective functions based on timing window of gates for optimization. The proposed method was evaluated on ISCAS-89 benchmark circuits using dynamic simulation. Results show that we achieve an average reduction of ~32% in glitch power.
Year
DOI
Venue
2014
10.1109/ISVLSI.2014.75
ISVLSI
Keywords
Field
DocType
clocks,flip-flops,integer programming,linear programming,scheduling,ISCAS-89 benchmark circuits,clock skew scheduling,dynamic power,flip-flops,glitch power reduction,integer linear programming,signal transitions,spurious transitions,Clock skew scheduling,Dynamic power,Glitches,Integer Linear programming
Glitch,Logic gate,Computer science,Electronic engineering,Integer programming,Dynamic demand,Clock skew,Linear programming,Electronic circuit,Dynamic simulation
Conference
ISSN
Citations 
PageRank 
2159-3469
2
0.42
References 
Authors
10
2
Name
Order
Citations
PageRank
Arunkumar Vijayakumar1444.65
Sandip Kundu21103137.18