The driver 11 outputs a driver current to the reception LSI 2, and the receiver 21 included in the reception LSI 2 receives an analog voltage signal corresponding to the value of the driver current as a receiver input. The A / D converter 22 converts the voltage signal of the receiver input into a digital value and transmits it to the driver current controller 12 in the transmission LSI 1. The driver current controller 12 adjusts the number of PMOS driving stages or the number of NMOS driving stages included in the driver 11 so that the digital value of the voltage signal of the receiver input falls within a predetermined range.
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机译：驱动器11将驱动器电流输出到接收LSI 2，并且包括在接收LSI 2中的接收器21接收与驱动器电流的值相对应的模拟电压信号作为接收器输入。 A / D转换器22将接收器输入的电压信号转换为数字值，并且将其发送至发送LSI 1中的驱动器电流控制器12。驱动器电流控制器12调整PMOS驱动级的数量或NMOS的数量。驱动器11中包括的驱动级，使得接收器输入的电压信号的数字值落在预定范围内。
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