Performance analysis and optimisation of NCL self-timed rings
Kuang, W.; Yuan, J.S.; DeMara, R.F.; Hagedorn, M.; Fant, K.
Circuits, Devices and Systems, IEE Proceedings -
Volume 150, Issue 3, 6 June 2003 Page(s): 167 - 172
Digital Object Identifier   10.1049/ip-cds:20030343
Summary: 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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