Exploiting level sensitive latches in wire pipelining Conference Paper uri icon


  • Wire pipelining emerges as a new necessity for global wires due to increasing wire delay, shrinking clock period and growing chip size. Existing approaches on wire pipelining are mostly based on edge triggered flip-flops. In this paper, we demonstrate the advantages of using level sensitive latches in terms of both latency and area cost. The input-output timing coupling and the strict short path constraint for latches demand additional design elaborations compared with flip-flops. New approaches are proposed in this work to solve these difficulties so that the advantages of latches can be fully utilized. In particular, a deferred delay padding technique is developed to correct short path violations with the minimal extra cost. These techniques are integrated with a dynamic programming based concurrent synchronous element and repeater insertion framework. Experimental results confirm the advantages of using latches as well as effectiveness of our algorithms. 2004 IEEE.

name of conference

  • ICCAD 2004. International Conference on Computer Aided Design

published proceedings

  • IEEE/ACM International Conference on Computer Aided Design, 2004. ICCAD-2004.

author list (cited authors)

  • Seth, V., Min Zhao, .., & Jiang Hu.

citation count

  • 5

complete list of authors

  • Seth, V

publication date

  • January 2004