| 摘要 |
PROBLEM TO BE SOLVED: To improve the processing efficiency of a control means and to compact the size of a signal converter by supplying a signal detected at the time of reading out digital data from a storage means to respective terminals other than the terminal of a control means. SOLUTION: When analog data S are inputted to a terminal t1 , the analog data S are converted into digital converter by an A/D converter 2. A CPU 1 outputs the digmtal data to a memory 3 through data lines 00 to 07 so as to write the digital data in the memory 3. When digital data are read out under the control of the CPU 1, the digital data are outputted to the CPU 1 through the data lines 00 to 07. Thereby a signal from the data line 07 is supplied to the base terminal of a switching transistor(TR), so that the TR is turned on. Consequently bias voltage Vcc impressed to a terminal t2 is impressed to data lines 08 to 031 through the TR. |
