M38203M4 Datasheet, PDF (47/344 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Transfer clock (Note 1)
Serial I/O2 register
write signal
Serial I/O2 output SOUT2
Serial I/O2 input SIN2
D0
D1
D2
D3
D4
D5
D6
(Note 2)
D7
Receive enable signal SRDY2
Serial I/O2 interrupt request bit set
Notes 1: When the internal clock is selected as the transfer clock, the divide ratio can be selected by setting bits 0 to 2 of the serial
I/O2 control register.
2: When the internal clock is selected as the transfer clock, the S OUT2 pin goes to high impedance after transfer completion.
Fig. 29 Timing of serial I/O2 function
3820 GROUP USER’S MANUAL
1-31