A communication device is provided for transmitting information incorporated into at least one message packet. The first conductive region is cup-shaped and has vertical walls which extend, in top plan view, along a closed line of elongated shape. It also includes a segmentation method to distinguish the foreground, for example an indicator such as a finger, from the background of a computer screen. With this microprocessor, when operations of the synchronous circuits are to be started, the supply of the internal clock signal from the PLL to the synchronous circuits is started in a time-staggered manner in order of the integer unit, the instruction cache, and the data cache.