| 摘要 |
<p>PURPOSE:To calculate the delay value that exactly reflects the inter-clock skew value and to decide a correct critical path by calculating the delay time for each logic and then checking the delay time based on an inter-clock skew value table and in consideration of the inter-clock skew value. CONSTITUTION:An inter-clock skew value table 21 is provided together with a delay check mechanism 3. Then the mechanism 3 starts successively the calculation of delay time at a start point, e.g. FF of each element. Thus each delay time is calculated against a designated junction point, e.g. FF. At the same time, the corresponding inter-clock skew value is taken out based on the table 21. Then this inter-clock skew value is added to the calculated delay time.</p> |
