| 摘要 |
PROBLEM TO BE SOLVED: To drastically reduce power consumption by optimally controlling power source supply of each ECU (electric control unit) to be connected to a communication network.SOLUTION: A transceiver/receiver 13 converts a message of a differential signal received via a CAN (controller area network) bus Bc into a digital signal. A select circuit 14 determines whether the converted message is a CAN format or a UART (universal asynchronous receiver transmitter) format, and outputs the message to a UART circuit 15 when the message is a UART format. The UART circuit 15 determines whether the message coincides with a UART format or not. In the case of coincidence, an ID determination circuit 16 determines whether an input message designates a CAN ID of an ECU itself or not, outputs an enable signal EN when a CAN ID of an ECU is designated, and turns on a regulator 4 to supply a power source to a MCU (micro controller unit) 5 and an actuator Ac. |
