| 摘要 |
<p>PROBLEM TO BE SOLVED: To decrease the number of connecting signal lines and also to improve the reliability of data in a system consisting of plural digital circuits which includes microprocessors. SOLUTION: In this microprocessor system, a microprocessor 1 has an output part consisting of a data output circuit 12, an address generation circuit 16 and D/A converters 13 and 17 and an input part consisting of a data input circuit 15 and an A/D converter 14. In the same way, both output and input parts are prepared in other digital circuits 3, 5 and 7 respectively. Then the data are transmitted between the output and input parts set opposite to each other by means of the analog signals AD1, AD2 and AA1.</p> |
