Patent ID: 8415977

Claim:
A semiconductor integrated circuit comprising: a first circuit group configured to include at least one first logic block; a second circuit group configured to include second logic blocks, the number of the second logic blocks being greater than the number of the first logic blocks; and an input-output unit configured to input input data to the first logic block or the second logic blocks and to output output data from the first logic block or the second logic blocks to an outside, wherein the first circuit group further includes: a first switching block configured to include a switch switching, in accordance with programmable control data, a connection of a wiring used for at least one of a connection of the first logic block with the input-output unit or a connection of a second logic block with the input-output unit; a connection between the first logic blocks; and a connection between the first logic block and the second logic block; and a first power control circuit configured to commonly control a start of power supply and a stop of the power supply with respect to the first logic block and the first switching block, and wherein the second circuit group further includes: a second switching block configured to include a switch switching, in accordance with programmable control data, a connection of a wiring used for at least one of a connection of the first logic block with the input-output unit or a connection of the second logic block with the input-output unit; a connection between the second logic blocks; and a connection between the first logic block and the second logic block; and a second power control circuit configured to commonly control a start of power supply and a stop of the power supply with respect to the second logic blocks and the second switching block.