M38504M6-201FP データシートの表示（PDF） - MITSUBISHI ELECTRIC

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M38504M6-201FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI ELECTRIC  

(1) Port P0, P1

Direction

register

Data bus

Port latch

(3) Port P21

Port XC switch bit

Direction

register

Data bus

Port latch

Sub-clock generating circuit input

(5) Port P24

Serial I/O enable bit

Receive enable bit

Direction

register

Data bus

Port latch

(7) Port P26

Serial I/O 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

Serial I/O input

Serial clock output

External clock input

Fig. 8 Port block diagram (1)

MITSUBISHI MICROCOMPUTERS

3850 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

(2) Port P20

Port XC switch bit

Direction

register

Data bus

Port latch

(4) Port P22, P23

Data bus

Direction

register

Port latch

Oscillator

Port P21

Port XC switch bit

(6) Port P25

P-channel output disable bit

Serial I/O enable bit

Transmit enable bit

Direction

register

Data bus

Port latch

Serial I/O output

(8) Port P27

Pulse output mode

Serial I/O mode selection bit

Serial I/O enable bit

SRDY output enable bit

Direction

register

Data bus

Port latch

Pulse output mode

Serial ready output

Timer output

CNTR0 interrupt

input

10

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