Ibis comparison program, Ibis comparison method and information processor

摘要

Problem to reduce the number of steps in waveform analysis using IBIS model.The processing unitThe first IBIS model (e.g., the IBIS model prior to the revision) and the second IBIS modelIt is applied to a simple topology circuit (simple topology circuit) than the circuit to be analyzed.The waveform quality of a transmission line of a simple topology circuit is analyzed by simulation (step S30,S31)Both analysis resultsAn evaluation value representing the difference of voltage values at each analysis pointThe absolute value of the absolute value of the difference (errmax) and the absolute value of the absolute value (errag)Threshold (VT1)Compare withIf the evaluation value is less than or equal to the threshold valueThe comparison result information indicating that the second IBIS model is not necessary for analysis (re analysis) by simulation applying the second IBIS model is output (e.g., displayed).Diagram