Patent ID: 7360192

Claim:
A macrocell which includes at least a circuit of a physical layer of a given interface standard in which data is transferred using differential signals, the macrocell comprising: a transmitter circuit which is connected with a first pad for a first signal which forms the differential signals and a second pad for a second signal which forms the differential signals; and a receiver circuit connected with the first and second pads, wherein the transmitter circuit includes a first transmission driver which drives a first signal line connected with the first pad, and a second transmission driver which drives a second signal line connected with the second pad, and wherein the first and second transmission drivers of the transmitter circuit are disposed on a first direction side of the first and second pads and are disposed line-symmetrically about a first line as a symmetry axis, and the receiver circuit is disposed on the first direction side of the transmitter circuit, the first direction being a direction from a first side of the macrocell towards a third side opposite to the first side, and the first line extending along the first direction.