| 摘要 |
<p>PURPOSE:To simplify the constitution of a system which includes a microcomputer by removing an extra noise removing circuit which is added outside. CONSTITUTION:The microcomputer is equipped with data latches 101-108 which hold the value of external input 14 from external equipment at constant intervals of time in order through the and a flip-flop 16 which compares the values held in the data latches 102, 104, 106, and 108 through an operation specification signal 23, decides whether or not the external input 14 is significant pulses by referring to a specific pulse width criterion, and selects and outputs only significant pulses through the C1 pulses 11; and the pulse width criterion is optionally selected through the operation specification signal 23.</p> |
