| 摘要 |
PURPOSE:To simplify the constitution, by setting a running pulse as 1, adding it to contents of an RAM, replacing the result with a read-out value, and storing it in the RAM. CONSTITUTION:An output signal from a running range sensor is inputted to an adding circuit 134, a counter 138 and a set terminal of an SR flip-flop 1360, from a monostable multivibrator 1362. By this signal, the counter 138 is reset, and counting is started again. Also, by an output signal from a Q terminal of the SR flip-flop 1360, a transmitting circuit 1361 starts to transmit, and a transmitting pulse is outputted. This transmitting pulse executes switching of an electronic selecting switch 132. The adding circuit 134 adds ''1'' to contents of a ''0'' address of an RAM130. At the following time point, the RAM130 sets the electronic switch 132 to an output mode by a write mode. In this case, an output data of the adding circuit 134 is written in the ''0'' address of the RAM130. |
