Techniques for debugging a multicore system with synchronous stop and resume capabilities are described. The sensor apparatus receives and decodes a tolerance value intrinsic to the sensor apparatus and set by a configurationread-out apparatus based on the output of the sensing circuit of the sensor apparatus placed under a prescribed environment, and stores the tolerance value in a nonvolatile memory. A first imaging device 111a receives the reflected light with high sensitivity. The actuation slide means has at least one control element that co-operates with at least one control means arranged on the other housing such that the movable housing is actuated toward the other housing when the actuation slide means is displaced. The CAD apparatus places each passive component in the determined component order in a vicinity of power pins of non-passive components that are already placed. The first multicast group exchange key is sent to the first user and used by the first user to generate the same second shared secret key.