M38747MDF-FS 查看數據表（PDF） - Mitsumi

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M38747MDF-FS

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

Mitsumi 

MITSUBISHI MICROCOMPUTERS

3874 Group

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

(22) Port P82

P82/SOUT3 • P84/SCLK3

P-channel output disable bit

SOUT3 output control bit

Serial transfer selection bit

Serial I/O disabled

Direction register

Data bus

Port latch

Serial I/O3 output

(24) Port P84

P82/SOUT3 • P84/SCLK3

Serial I/O3 synchronous P-channel output disable bit

clock selection bit

Internal synchronous clock

Serial transfer selection bit

Serial I/O disabled

Direction register

Data bus

Port latch

(23) Port P83

Transfer mode selection bit

Serial transfer selection bit

Serial I/O disabled

Direction register

Data bus

Port latch

Serial I/O3 input

(25) Port P85

P85/SRDY3 • P86/SBUSY3 pin control bit

SRDY3 output

P85/SRDY3 • P86/SBUSY3 pin control bit

SRDY3 input

Serial transfer selection bit

Serial I/O disabled

Direction register

Data bus

Port latch

Serial I/O3 clock output

Serial I/O3 clock input

(26) Port P86

P85/SRDY3 • P86/SBUSY3 pin control bit

SBUSY3 output

P85/SRDY3 • P86/SBUSY3 pin control bit

SBUSY3 input

Serial transfer selection bit

Serial I/O disabled

Direction register

Data bus

Port latch

Serial I/O3 ready output

Serial I/O3 ready input

(27) Port P87

Serial I/O3 synchronous clock selection bit

SSTB3,SSTB3 output

Serial I/O disabled

Direction register

Data bus

Port latch

Serial I/O3 busy output

Serial I/O3 busy input

Fig. 16 Port block diagram (5)

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