The search functionality is under construction.
The search functionality is under construction.

A Clock Scheduling Algorithm for High-Throughput RSFQ Digital Circuits

Koji OBATA, Kazuyoshi TAKAGI, Naofumi TAKAGI

  • Full Text Views

    0

  • Cite this

Summary :

An algorithm for clock scheduling of concurrent-flow clocking rapid single-flux-quantum (RSFQ) digital circuits is proposed. RSFQ circuit technology is an emerging technology of digital circuits. In concurrent-flow clocking RSFQ digital circuits, all logic gates are driven by clock pulses. Appropriate clock scheduling makes clock frequency of the circuits higher. Given a clock period, the proposed algorithm determines the arrival time of clock pulses and the delay that should be inserted. Experimental results show that inserted delay elements by the proposed algorithm are 59.0% fewer and the height of clock trees are 40.4% shorter on average than those by a straightforward algorithm. The proposed algorithm can also be used to minimize the clock period, thus obtaining 19.0% shorter clock periods on average.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E91-A No.12 pp.3772-3782
Publication Date
2008/12/01
Publicized
Online ISSN
1745-1337
DOI
10.1093/ietfec/e91-a.12.3772
Type of Manuscript
PAPER
Category
VLSI Design Technology and CAD

Authors

Keyword