Patent ID: 7212065

Claim:
A semiconductor integrated circuit device divided into a plurality of blocks including a first block and a second block, comprising: first power supply wiring for supplying power supply potential to the first block; second power supply wiring for supplying power supply potential to the second block; a first feeder terminal for supplying power to the first block via the first power supply wiring; a second feeder terminal for supplying power to the second block via the second power supply wiring; and a switch circuit disposed between the first power supply wiring and the second power supply wiring and used for deciding whether to connect the first power supply wiring and the second power supply wiring, wherein each of the first feeder terminal and the first power supply wiring, the first power supply wiring and the first block are directly connected, each of the second feeder terminal and the second power supply wiring, the second power supply wiring and the second block are directly connected, and the first feeder terminal and the second feeder terminal are connected to outside of the semiconductor integrated circuit device.