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38C2 데이터시트(PDF) 21 Page - Mitsubishi Electric Semiconductor |
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38C2 데이터시트(HTML) 21 Page - Mitsubishi Electric Semiconductor |
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21 / 63 page ![]() 21 38C2 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS PRELIMINAR Y Notice: This is not a final specification. Some parametric limits are subject to change. A key input interrupt is controlled by the key input control register and port direction registers. When the key input interrupt is enabled, set “1” to the key input control register. A key input of any pin of ports P00–P03, P54–P57 that have been set to input mode is accepted. Fig. 18 Structure of key input control register Key input control register P54 key input control bit P55 key input control bit P56 key input control bit P57 key input control bit P00 key input control bit P01 key input control bit P02 key input control bit P03 key input control bit (KIC : address 0FF216) b7 b0 0 : Key input interrupt disabled 1 : Key input interrupt enabled |
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