| 摘要 |
PROBLEM TO BE SOLVED: To efficiently and analyze defects caused by a leakage-cut function, in a short time. SOLUTION: A plurality of switching circuits are provided, in correspondence with a plurality of circuit blocks. Each of plurality of the switching circuits is connected between a power supply terminal and a power supply line of a corresponding circuit block. A setting circuit is provided for setting the validity/invalidity, with respect to each of plurality of the switching circuits. A switching control circuit turns each of plurality of the switching circuits to ON, in response to a first control signal that indicates the operating states of plurality of the circuit blocks, when each circuit is set effective by the setting circuit; and turns each of the circuits to ON, independently of the first control signal, when each circuit is set ineffective by the setting circuit. COPYRIGHT: (C)2007,JPO&INPIT
|
