| 摘要 |
PROBLEM TO BE SOLVED: To provide logical simulation method and device capable of obtaining accurate power consumption and delay time reflecting the influence of self heat generation. SOLUTION: For respective gates which are the constituting elements of a logic circuit to be simulated, gate power consumption (PG) and gate delay time (Tg) are calculated based on a function defined with the self heat generation TH of the gate as a parameter. The entire power consumption Ph and entire delay time Th of the entire circuit are calculated based on the calculated values PG and Tg and a heat generation parameter THp obtained by averaging the self heat generation TH obtained from the gate power consumption PG for respective blocks composed of one or plural gates. Until the deviations of the respective calculated values Ph, Th and THp in the processing of a previous time and the processing of this time all become within an allowable range, the newly calculated heat generation parameter THp is fed back as the self heat generation TH and the above-mentioned processing is repeatedly executed.
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