M38C88EA-XXXFP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M38C88EA-XXXFP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

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(6) Port P44

Serial I/O enable bit

Receive enalble bit

Direction

register

Data bus

Port latch

Pull-up control

Serial I/O input

MITSUBISHI MICROCOMPUTERS

38C8 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

Databus

Port latch

Pull-up control

Serial I/O output

(8) Port P46

Serial I/O synchronous

clock 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 clock output

Serial I/O clock input

Fig. 12 Port block diagram (2)

(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 ready output

16

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