DocumentCode :
649306
Title :
NCL+: Return-to-one Null Convention Logic
Author :
Moreira, Matheus T. ; Oliveira, C.H.M. ; Porto, R.C. ; Calazans, Ney L. V.
Author_Institution :
GAPH - Fac. of Inf., Pontifical Catholic Univ. of Rio Grande do Sul, Porto Alegre, Brazil
fYear :
2013
fDate :
4-7 Aug. 2013
Firstpage :
836
Lastpage :
839
Abstract :
Asynchronous paradigms are a way to deal with hard problems in newer technologies. Among the templates for ensuring efficient asynchronous design, Null Convention Logic (NCL) appears as a fast and relatively low area and power option, enabling semi-custom design. This work proposes a new asynchronous logic template, NCL+, which is a modification of NCL to support the return-to-one protocol. A basic library of NCL+ standard-cells, with different driving strengths enables comparison between NCL and NCL+. While no significant differences in area arise, results suggest that a trade-off of power versus forward propagation delay exists. Accordingly, NCL+ provides more power efficiency and NCL provides smaller forward propagation delays.
Keywords :
asynchronous circuits; logic design; NCL+ standard-cells; asynchronous design; asynchronous logic template; forward propagation delay; power efficiency; return-to-one null convention logic; return-to-one protocol; semicustom design;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems (MWSCAS), 2013 IEEE 56th International Midwest Symposium on
Conference_Location :
Columbus, OH
ISSN :
1548-3746
Type :
conf
DOI :
10.1109/MWSCAS.2013.6674779
Filename :
6674779
Link To Document :
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