| 摘要 |
A power consumption calculating apparatus includes a power consumption library unit storing a power consumption consumed in at least one logical primitive of a logic circuit at a time of transiting a state of the logical primitive in correspondence with an identifier provided for a combination of input signal states and a load capacitance; a logic circuit information storing unit storing information of a structure for the logical primitive and of a connection state between the logical primitives; a capacitance storing unit storing information for the load capacitance estimated in response to the logic circuit information; an input signal type storing unit storing information of input signal type in the logic circuit; a logical simulation unit carrying out a logical simulation with use of the logic circuit information and the input signal type information to determine state-transited information with the identifier used; and a power consumption calculating unit collecting the identifier obtained from a result of the logical simulation, determining a power consumption for the logical primitive with reference to the power consumption library unit in response to the state-transited information of the identifier and the load capacitance information, and summing the power consumption for at least the one logical primitive to determine a total power consumption of the logic circuit.
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