Electronics America 8-Bit Single-Chip Microcontrollers User's Manual

CHAPTER 17 SERIAL INTERFACE CHANNEL 0 (

PD78054Y Subseries)

(2) Serial operating mode register 0 (CSIM0)

This register sets serial interface channel 0 serial clock, operating mode, operation enable/stop wake-up

function and displays the address comparator match signal.

CSIM0 is set with a 1-bit or 8-bit memory manipulation instruction.

RESET input sets CSIM0 to 00H.

Caution Do not switch the operation mode (3-wire serial I/O, 2-wire serial I/O, I

C bus) while the

operation of serial interface channel 0 is enabled. Stop the serial operation before switching

the operation mode.