M38220M1DHP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M38220M1DHP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

MITSUBISHI MICROCOMPUTERS

3822 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

(7) Port P45

P45/TxD P-channel output disable bit

Serial I/O enable bit

Transmit enable bit

Direction register

Data bus

Port latch

Pull-up control

(8) Port P46

Serial I/O clock-

synchronized selection bit

Serial I/O enable bit

Serial I/O mode selection bit

Serial I/O enable bit

Direction register

Data bus

Port latch

Pull-up control

Serial I/O output

(9) Port P47

Serial I/O mode selection bit

Serial I/O enable bit

SRDY output enable bit

Direction register

Data bus

Port latch

Pull-up control

Serial I/O clock output

Serial I/O clock input

(10) Ports P52, P53

Pull-up control

Direction register

Data bus

Port latch

Serial I/O ready output

Real time port control bit

Data for real time port

(11) Port P54

Direction register

Data bus

Port latch

(12) Ports P55, P57

Pull-up control

Pull-up control

Direction register

Data bus

Port latch

Timer X operating mode bit

(Pulse output mode selection)

Timer output

CNTR0 interrupt input

Fig. 16 Port block diagram (2)

CNTR1 interrupt input

A-D trigger interrupt input

20

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