| 摘要 |
PURPOSE: A multimedia linguistic learning device is provided for a user to looking, reading, and pronunciation listening exercises in a sentence unit when the user learns linguistics. CONSTITUTION: A multimedia linguistic learning device comprises CPU(Central Processing Unit) parts and a switch. If the switch is pushed, a next sentence file or a voice file is outputted in a sentence displayed on an LCD(Liquid Crystal Display) and an outputting voice file, or a previous sentence or a voice file is outputted. External interrupt pins are allocated to all CPU parts. If a voltage applied to the external interrupt pins is +3.3V, the multimedia linguistic learning device recognizes High. If the voltage is 0V, the multimedia linguistic learning device recognizes Low. If a user pushes a forward switch, the rising edge of the switch is detected. And, it is recognized that the switch is pushed once. An identification key value is allocated to the switch. The key value is transferred to a language learning program.
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