| 摘要 |
PURPOSE:To omit the time and a program needed for multiplexing pushing process of a key by reading only the normal key input that is obtained first after a key scan is started within a key scan period and then discontinuing the subsequent key scanning operations. CONSTITUTION:The key scan is started at and after the key of the key input which is read in the preceding key scan period for each key scan period. The key input obtained first in the key scan process is fetched and stored. The subsequent key scanning operations are discontinued and the on-chattering processing is carried out with key input. Thus the final key input is read. In such a way, only the key input obtained first after the key scan is started is fetched within a key scan period and the subsequent scans are discontinued. Thus it is possible to omit the time and a program needed for multiplexing pushing process of a key.
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