M38220M3HFP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M38220M3HFP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

3822 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

(1) Ports P0, P1

VL2/VL3

VL1/VSS

Segment output enable bit

(Note)

Direction register

Data bus

Port latch

(2) Ports P2, P42, P43, P50, P51

Pull-up control

Direction register

Data bus

Port latch

Pull-down control

Segment output enable bit

Note: Bit 0 of direction register.

(3) Ports P34–P37

VL2/VL3

VL1/VSS

Data bus

Pull-down control

Segment output enable bit

(5) Port P41

Pull-up control

Direction register

Data bus

Port latch

Key input (Key-on wake-up) interrupt input

INT0–INT3 interrupt input

(4) Port P40

Data bus

(6) Port P44

Serial I/O enable bit

Receive enable bit

Direction register

Data bus

Port latch

Pull-up control

φ output control bit

φ

Serial I/O input

Fig. 15 Port block diagram (1)

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