Performance analysis and optimisation of NCL self-timed rings
Kuang, W.
Yuan, J.S.
DeMara, R.F.
Hagedorn, M.
Fant, K.
Sch. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA;
This paper appears in: Circuits, Devices and Systems, IEE Proceedings -
Publication Date: 6 June 2003
Volume: 150,
Issue: 3
On page(s): 167- 172
ISSN: 1350-2409
INSPEC Accession Number: 7665699
Digital Object Identifier: 10.1049/ip-cds:20030343
Current Version Published: 2003-07-28
Abstract
A self-timed ring using NULL convention logic (NCL) is presented. An analytical method to evaluate the speed of NCL rings has been developed. The analytical predictions are verified by a Synopsys simulation and excellent agreement between the theoretical predictions and simulation results is obtained. Some important principles for ring optimisation are obtained. The analysis leads to the speed optimisation of a 24-bit NCL divider.
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