PD178002_15 Datasheet, PDF (21/50 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD178002, 178003
5.6 Serial Interfaces
One clocked serial interface channel is incorporated.
Serial interface channel 1 operates in the 3-wire serial I/O mode where MSB/LSB first can be switched.
Figure 5-6. Block Diagram of Serial Interface Channel 1
Internal bus
SI1/P20
SO1/P21
SCK1/P22
Serial I/O shift register 1 (SIO1)
Serial clock counter
Serial clock control circuit
Interrupt request
signal generator
INTCSI1
Selector
fXX/2 to fXX/2 ⁸
Data Sheet U12628EJ3V0DS00
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