| 摘要 |
In an ECU, a level adjusting unit communicable to first and second control circuits and a bus transceiver installed in the ECU receives first data and second data respectively transmitted from the first and second control circuits. The bus transceiver is communicable to a communication bus. When the first data and the second data are simultaneously received, the level adjusting unit merges the first data and the second data such that a first electric level of the first data wins with a second electric level of the second data. The level adjusting unit outputs the merged data to the bus transceiver.
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