| 摘要 |
PURPOSE:To simplify a circuit constitution and to enable to conduct a logical and pattern design by means of only a microprogram, by a method wherein a clock consists of a microprocessor for digital clock use only. CONSTITUTION:Outputs of a crystal vibration 1 and an oscillation dividing circuit 2 are inputted to a stop watch 1/100 second circuit 9, and a multiineterruption control circuit 10. The multiineterruption control circuit 10 receives a signal of a autoclear circuit, monitors a condition of an external operation switch 3 for selecting a mode of a cell 7, and controls a processing order of each input signal according to a priority level. A program interruption signal N and a program transfer address signal M for interruption from the multiineterruption control circuit 10 are inputted to a next address control circuit 14 and a program sequence circuit 1 to access a microprogram memory circuit 12, and the details, stored in a desired program address, is outputted to a pipe line register circuit 13. Then, the output of the circuit 13 is inputted to an operational circuit 15 to perform anoperational processing. |
