| 摘要 |
PROBLEM TO BE SOLVED: To provide a system capable of performing a correct verification even when performing the simulation or the like of a circuit on which plural switches having a branch are arranged by performing the simulation after replacing the switches included in an integrated circuit with a switch with resistor in which resistor means are serially inserted to these switches. SOLUTION: The simulation is performed after switches S1-S4 provided in the integrated circuit are replaced with the switch with resistor in which resistors R1-R4 are serially inserted to these switches S1-S4. Thus, when the resistors R1-R4 are inserted between networks, since networks netA-netD are recognized respectively independent because of the character of a simulator, plural networks are recognized, and the branch is judged and converged. Thus, time for design can be shortened in the case of designing an option circuit having plural functions and the convergence of simulation with the design change of the option circuit is improved.
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