| 摘要 |
PURPOSE:To facilitate routing and design and automatize wiring by equipping it with a first power source main line, which supplies power from a power supply point to a second power source main line, and a third power source main line, which supplies power to a logical function part. CONSTITUTION:Power supply lines 6 to 8 are arranged in the regions where logical function parts 2 to 3 are arranged, and the power supply line 6, which supplies power from a power supply point 5, and the power supply lines 7 and 8, which supply power into the logical function part 3, are connected to each other. That is, since the power supply line arranged as a second power source main line 7 is arranged in the channel along the margin of the region where the logical function part 3 is arranged, the degree of freedom in block layout design in the logical function part is little limited, and it is hardly affected by the arrangement, the shape, and the size of blocks. For this reason, the power supply line 6 which supplies power from the power supply point 5, and the power supply lines 7 and 8 which supply power to a logical function part 3 can be connected to each other at optional positions, respectively. Hereby, routing is facilitated, and the design is facilitated, and the wiring is automatically carried out. |
