| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and system for generating a synchronous sequence of vectors from information originating within an asynchronous environment. <P>SOLUTION: A simulated asynchronous sequence is synchronized by extracting a state at each clock period to generate a simulation synchronous sequence. The sequence is manipulated first to include short delays for generating an asynchronous short-delay sequence, and at second to include long delays for generating an asynchronous long-delay sequence. An overlay is separately performed among the asynchronous short-delay sequence and the asynchronous long-delay sequence to identify respectively a first time interval and a second time interval. The first time-interval and the second time-interval are independently duplicated in successive clock periods to respectively generate a synchronous short-delay sequence and a synchronous long-delay sequence. An overlay performed on the two sequences is to allow generation of the synchronous sequence of vectors for verifying operations of an IC design by a tester. <P>COPYRIGHT: (C)2004,JPO |
