M38748M6D 데이터 시트보기 (PDF) - Mitsumi

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M38748M6D

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Mitsumi 

MITSUBISHI MICROCOMPUTERS

3874 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

(17) Port P72

SCLK2 pin selection bit

Direction register

SCLK2 pull-up

P71/SOUT2 • P72/SCLK2

P-channel output disable bit

Data bus

Port latch

Serial I/O2 clock output

Serial I/O2 clock input

(18) Port P75

Data link layer communication

control circuit valid signal

(output from sub-CPU)

Direction register

Data bus

Port latch

(19) Port P76

Data link layer communication

control circuit valid signal

(output from sub-CPU)

Direction register

Data bus

Port latch

Data link layer communication control

circuit transmit output

Data link layer communication control circuit

receive input

(20) Port P77

(21) Port P80

Direction register

Data bus

Port latch

Direction register

Data bus

Port latch

ADT interrupt input

When the direction register is “0,” the schmidt

input pin is connected to port.

Fig. 15 Port block diagram (4)

20

D-A converter output

D-A ON

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