| 摘要 |
PURPOSE:To interrupt an output until a signal output source of various peripheral devices is operated normally by using a one-shot multivibrator triggered based on a reset signal and a clock signal of a microcomputer. CONSTITUTION:The clock signal and the reset signal are ANDed by an AND gate G1 and the resulting signal triggers the one-shot multivibrator MV. The operating time of the vibrator MV is set longer than the longest time of an expected unstable time of various peripheral devices. Since an output signal of the MV is inputted to an ANG gate G2, so long as the MV is operated, the signal output of a signal output source SIG is interrupted. Thus, the output is interrupted until the signal output source of the various peripheral devices is operated normally. |
