Through-current power table, method of generating thereof and method of calculating power consumption

摘要

A through-current power table indicates through-current power of a standard cell with respect to each combination of plural kinds of waveform distortion of an input signal input to the standard cell and plural kinds of power supply voltage supplied to the standard cell. A method of calculating power consumption of a circuit comprises: performing a computer simulation of the circuit to calculate waveform distortion of an input signal with respect to each standard cell; calculating through-current power corresponding to the calculated waveform distortion and a specified power supply voltage by reference to the through-current power table; calculating charge-discharge power of the circuit by using load capacitance information of the circuit and the specified power supply voltage; and calculating power consumption of the circuit based on the calculated through-current power and the calculated charge-discharge power.