358CHAPTER 17 SERIAL INTERFACE CHANNEL 0 (μPD78058FY SUBSERIES)17.4.3 2-wire serial I/O mode operationThe 2-wire serial I/O mode can cope with any communication format by program.Communication is basically carried out with two lines of serial clock (SCK0) and serial data input/output (SB0 orSB1).Figure 17-10. Serial Bus Configuration Example Using 2-Wire Serial I/O Mode(1) Register settingThe 2-wire serial I/O mode is set with the serial operating mode register 0 (CSIM0), serial bus interface controlregister (SBIC), and interrupt timing specify register (SINT).MasterSCK0SlaveSB0 (SB1)SCK0SB0 (SB1)AV DDAV DD