A semiconductor integrated circuit device includes a data circuit and a group of bit line application voltage terminals to which different voltages are applied. In the communication method, communication is performed between coordinator-based wireless networks in a network including the coordinator-based wireless networks connected through a wired backbone network by means of a combination of identification information of a network device and identification information of a coordinator-based wireless network including the network device. Each collar has a slightly recessed central area and a raised toroidal rim therearound.