| 摘要 |
PURPOSE:To make the channel address of a multi-input analog converter easy, to obtain, by providing index data for the data of specific channel only. CONSTITUTION:A multiplexer 1 receives analog signals from an analog input terminal 2 and a final channel signal of the mulitplexer 1 via an input terminal 3. The analog data inputted from the multiplexer 1 selected at a selection circuit 6 is converted into a digital data at an A/D converter 4 and a start channel data is provided from an index provision circuit. When data other than the start channel is selected, since no index data is provided, the start data and the data of the other channels are clearly discriminated. |
