M38027M7DXXXFP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC

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M38027M7DXXXFP

8-BIT SINGLE-CHIP MICROCOMPUTER

MITSUBISHI ELECTRIC  

HARDWARE

FUNCTIONL DESCRIPTION

(1) Ports P0, P1, P2, P32–P37

Direction register

Data bus

Port latch

(3) Ports P40–P43, P57

Direction register

Data bus

Port latch

Interrupt input

(5) Port P45

P45/TXD P-channel output disable bit

Serial I/O1 enable bit

Transmit enable bit

Direction register

Data bus

Port latch

Serial I/O1 output

(7) Port P47

Serial I/O1 mode selection bit

Serial I/O1 enable bit

SRDY1 output enable bit

Direction register

Data bus

Port latch

Serial I/O1 ready output

Fig. 12 Port block diagram (single-chip mode) (1)

(2) Ports P30, P31

Direction register

Data bus

Port latch

D–A conversion output

DA1 output enable bit (P30)

DA2 output enable bit (P31)

(4) Port P44

Serial I/O1 enable bit

Receive enable bit

Direction register

Data bus

Port latch

Serial I/O1 input

(6) Port P46

Serial I/O1 synchronous

clock selection bit

Serial I/O1 enable bit

Serial I/O1 mode selection bit

Serial I/O1 enable bit

Direction register

Data bus

Port latch

Serial I/O1 clock output

(8) Port P50

Direction register

Data bus

Port latch

Serial I/O1

external

clock input

Serial I/O2 input

1-16

3802 GROUP USER’S MANUAL

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