Title :
A timing analysis algorithm for circuits with level-sensitive latches
Author :
Lee, Jin-Fuw ; Tang, Donald T. ; Wong, C.K.
Author_Institution :
IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA
fDate :
5/1/1996 12:00:00 AM
Abstract :
For a logic design with level-sensitive latches, we need to validate timing signal paths which may flush through several latches. We developed efficient algorithms based on the modified shortest and longest path method. The computational complexity of our algorithm is generally better than that of known algorithms in the literature. The implementation (CYCLOPSS) has been applied to an industrial chip to verify the clock schedules
Keywords :
clocks; computational complexity; flip-flops; logic CAD; sequential circuits; timing; CYCLOPSS; clock schedules; computational complexity; level-sensitive latches; logic design; longest path method; shortest path method; signal paths; timing analysis algorithm; Algorithm design and analysis; Circuit analysis; Clocks; Delay; Flip-flops; Job shop scheduling; Latches; Logic design; Signal design; Timing;
Journal_Title :
Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on