Abstract: A semiconductor device and the like for maintaining a required function while suppressing unauthorized accesses are provided. The semiconductor device 100 includes a main control device 110 and a sub-control device 120. The main control device 110 includes a main memory 112 for storing main programs for receiving external signals, and a trigger signal output circuit 115 for outputting a trigger signal when an abnormal signal process differs from preset signal processing is performed. The sub-control device 120 is coupled to the main control device 110, and includes a trigger signal obtaining circuit 121 for obtaining a trigger signal, and a sub-program outputting circuit 123 for outputting a sub-program to the main control device 110 based on the obtained trigger signal.

Abstract: A semiconductor device and the like for maintaining a required function while suppressing unauthorized accesses are provided. The semiconductor device 100 includes a main control device 110 and a sub-control device 120. The main control device 110 includes a main memory 112 for storing main programs for receiving external signals, and a trigger signal output circuit 115 for outputting a trigger signal when an abnormal signal process differs from preset signal processing is performed. The sub-control device 120 is coupled to the main control device 110, and includes a trigger signal obtaining circuit 121 for obtaining a trigger signal, and a sub-program outputting circuit 123 for outputting a sub-program to the main control device 110 based on the obtained trigger signal.

Abstract: When a state of a radio communication device corresponds to a predetermined state, a communication control unit operates in the first mode to communicate according to the BLE standard, while when the radio communication device does not receive connect request packets, the communication control unit operates in the second mode to communicate. A rewrite switching unit switches to a rewritable state when the communication control unit operates in the first mode and to a rewriting prohibited state when the communication control unit operates in the second mode. The first mode is a mode for updating. In the first mode, the communication control unit transmits a notification for limiting the communication to the updating in an establishment process of the communication. The second mode is a mode for performing processing other than the updating. In the second mode, the communication control unit does not transmit the notification.

Abstract: When a state of a radio communication device corresponds to a predetermined state, a communication control unit operates in the first mode to communicate according to the BLE standard, while when the radio communication device does not receive connect request packets, the communication control unit operates in the second mode to communicate. A rewrite switching unit switches to a rewritable state when the communication control unit operates in the first mode and to a rewriting prohibited state when the communication control unit operates in the second mode. The first mode is a mode for updating. In the first mode, the communication control unit transmits a notification for limiting the communication to the updating in an establishment process of the communication. The second mode is a mode for performing processing other than the updating. In the second mode, the communication control unit does not transmit the notification.

Abstract: When a state of a radio communication device corresponds to a predetermined state, a communication control unit operates in the first mode to communicate according to the BLE standard, while when the radio communication device does not receive connect request packets, the communication control unit operates in the second mode to communicate. A rewrite switching unit switches to a rewritable state when the communication control unit operates in the first mode and to a rewriting prohibited state when the communication control unit operates in the second mode. The first mode is a mode for updating. In the first mode, the communication control unit transmits a notification for limiting the communication to the updating in an establishment process of the communication. The second mode is a mode for performing processing other than the updating. In the second mode, the communication control unit does not transmit the notification.

Abstract: When a state of a radio communication device corresponds to a predetermined state, a communication control unit operates in the first mode to communicate according to the BLE standard, while when the radio communication device does not receive connect request packets, the communication control unit operates in the second mode to communicate. A rewrite switching unit switches to a rewritable state when the communication control unit operates in the first mode and to a rewriting prohibited state when the communication control unit operates in the second mode. The first mode is a mode for updating. In the first mode, the communication control unit transmits a notification for limiting the communication to the updating in an establishment process of the communication. The second mode is a mode for performing processing other than the updating. In the second mode, the communication control unit does not transmit the notification.