| 摘要 |
<p>PURPOSE:To securely set the operation mode through simple constitution by easy operation by turning ON the power source of the microcomputer while holding one port of the microcomputer at a high level. CONSTITUTION:The capacitor 28 of a parallel circuit 29 is charged momentarily by electrically connecting a couple of terminals of copper fall, etc., formed on a wiring circuit board 11 through a metallic pin set, etc., and then even when the terminals are disconnected from each other thereafter, the operation mode of the microcomputer 12 can be set by turning ON the power source of the microcomputer 12 in a discharging period determined with the time constant of a resistance 27 and the capacitor 28.</p> |
