Means of calculating power consumption characteristic and method thereof

A means for calculating a power consumption characteristic comprising:

• a means for memorizing a partial circuit which memorizes a plurality of partial circuits having a transistor and an input wiring and an output wiring;
• a means for memorizing a partial circuit input which is a logical change given to the input wiring in said partial circuit;
• a means for calculating and memorizing an input/output relation of a partial circuit, which is a correspondence of a logical value from outside to said partial circuit to a logical value from said partial circuit to outside, based on a memory in said means for memorizing a partial circuit and a memory in said means for memorizing a partial circuit input;
• a means for making and memorizing a current path, which is a joined path of a path from a power supply wiring to a ground wiring having a transistor driven by either of a logical value before a change and a logical value after a change of said partial circuit input in a partial circuit as well as a path from a power supply wiring to an output wiring or a path from an output wiring to a ground wiring having a transistor driven by a logical value after a change in said partial circuit, after referring to a memory in sad means for memorizing a partial circuit and a memory in said means for calculating and memorizing an input/output relation of a partial circuit;
• a means for making and memorizing a relation of a partial circuit input to a current path which is a correspondence of a memory in said means for calculating and memorizing an input/output relation of a partial circuit to a current path made by said means for calculating and memorizing a current path;
• a means for identifying a partial circuit input which refers to a memory in said means for making and memorizing a relation of a partial circuit input to a current path before calculating a current path at each partial circuit input, regards a plurality of partial circuit inputs having the same current path as the same partial circuit input, and memorizes the partial circuit input again in said means for making and memorizing a relation of a partial circuit input to a current path;
• and
• a means for calculating a partial circuit power consumption in a current path at each partial circuit input after a function of said means for identifying a partial circuit input.

A method of calculating a power consumption characteristic comprising the steps of:

• memorizing a circuit network having a transistor and an input wiring and an output wiring;
• memorizing a circuit input which is a logical change given to the input wiring in said circuit network;
• making and memorizing a partial circuit into which a connection between a gate terminal and a terminal except a gate terminal is separated while holding a connection between gate terminals and a connection between terminals except a gate terminal at the transistor composing the circuit network memorized by said step for memorizing a circuit network;
• making and memorizing a partial circuit connection, which is a connection between said partial circuits, while considering a function and an adjustment of said step for making and memorizing a partial circuit;
• calculating and memorizing an input/output relation of a partial circuit, which is a correspondence of a logical value in a partial circuit input wiring for transmitting the logical value from outside to said partial circuit to a logical value in a partial circuit output wiring for transmitting the logical value from said partial circuit to outside, in each partial circuit, based on a memory in said step for making and memorizing a partial circuit;
• calculating and memorizing a relation of a circuit input to a partial circuit input, which is a correspondence of the logical change given to the input wiring in said circuit network to an input change in each partial circuit, based on a memory in said step for memorizing a circuit input and a memory in said step for making and memorizing a partial circuit connection and a memory in said step for calculating and memorizing an input/output relation of a partial circuit;
• circulating and memorizing a relation of a partial circuit input to a power consumption, which is a correspondence of an input logical change column in said partial circuit to a power consumption in each input logical change, through a predetermined procedure, based on a memory in said step for making and memorizing a partial circuit and a memory in said step for calculating and memorizing an input/output relation of a partial circuit;
• and
• calculating and memorizing a circuit power consumption by regarding a sum of a power consumption at each partial circuit input corresponding to a circuit input as a power consumption in a circuit corresponding to the circuit input, based on a memory in said step for calculating and memorizing a relation of a civet input to a partial circuit input and a memory in said step for calculating and memorizing a relation of a partial circuit input to a power consumption.

A method of calculating a power consumption characteristic comprising the steps of:

• memorizing a partial circuit which memorizes a plurality of partial circuits having a transistor and an input wiring and an output wiring;
• memorizing a partial circuit input which is a logical change given to the input wiring in said partial circuit;
• calculating and memorizing an input/output relation of a partial circuit, which is a correspondence of a logical value from outside to said partial circuit to a logical value from said partial circuit to outside, based on a memory in said step for memorizing a partial circuit and a memory in said step for memorizing a partial circuit input;
• making and memorizing a current path, which is a joined path of a path from a power supply wiring to a ground wing having a transistor driven by either of a logical value before a change and a logical value after a change of said partial circuit input in a partial circuit as well as a path from a power supply wiring to an output wiring or a path from an output wiring to a ground wiring having a transistor driven by a logical value after a change in said partial circuit, after referring to a memory in said step for memorizing a partial circuit and a memory in said step for calculating and memorizing an input/output relation of a partial circuit;
• making and memorizing a relation of a partial circuit input to a current path which is a correspondence of a memory in said step for calculating and memorizing an input/output relation of a partial circuit to a current path made by said step for calculating and memorizing a current path;
• identifying a partial circuit input which refers to a memory in said step for making and memorizing a relation of a partial circuit input to a current path before calculating a current path at each partial circuit input, regards a plurality of partial circuit inputs having the same current path as the same partial circuit input, and memorizes the partial circuit input again in said step for making and memorizing a relation of a partial circuit input to a current path;
• and
• calculating a partial circuit power consumption in a current path at each partial circuit input after a function of said step for identifying a partial circuit input.