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M38C21F1DHP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

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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.

MITSUBISHI MICROCOMPUTERS

38C2 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

b7

b0 Key input control register

(KIC : address 0FF216)

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

0 : Key input interrupt disabled

1 : Key input interrupt enabled

Fig. 18 Structure of key input control register

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