Chapter 11 Serial Interface 0, 1XI - 54 Operation11-3-6 Serial interface 0 UART Serial Interface Pin SetupSerial Interface 0 Pin Setup (1, 2 channels, at transmission)Table 11-3-25 shows the pins setup at UART serial interface 0 transmission. The pins setup is commonto the TXD0 pin, RXD0 pin, regardless of those pins are independent / connected.Serial Interface 0 Pin Setup (2 channels, at reception)Table 11-3-26 shows the pins setup at UART serial interface 0 reception with 2 channels (TXD0 pin,RXD0 pin).Table 11-3-26 UART Serial Interface 0 Pin Setup (2 channels, at reception)Table 11-3-25 UART Serial Interface 0 Pin Setup (1, 2 channels, at transmission)Data output pin Data input pinTXD0A pin/ RXD0A pin/TXD0B pin RXD0B pinPort Pin P03/P70 P04/P71Serial data output "1" inputSC0MD1(SC0SBOS) SC0MD1(SC0SBIS)Push-pull /Nch open-drainSC0ODC (SC0ODC0)SC0ODC (SC0ODC2)Output modeP0DIR (P0DIR3)P7DIR (P7DIR0)Add/Not AddP0PLU (P0PLU3)P7PLUD(P7PLUD0)Style -Setup itemPort Pin SetupTXD / RXD pin SetupFunctionSC0ODC (SC0SEL)Select used pin (A, B)TXD0/RXD0 pin independent/connectionSC0MD1 (SC0IOM)Note) Select pull-up/down resistor with P7RDOWN flag of FLOAT register (x'03F2E')[ Chapter4, 4.7.2 Register ]--I/OPull-up (Pull-down) setupData output pin Data input pinTXD0A pin/ RXD0A pin/TXD0B pin RXD0B pinPort Pin P03/P70 P04/P71Port Serial data inputSC0MD1(SC0SBOS) SC0MD1(SC0SBIS)Push-pull /Nch open-drainSC0ODC (SC0ODC0)SC0ODC (SC0ODC2)input modeP0DIR (P0DIR4)P7DIR (P7DIR1)---I/OPull-up (Pull-down) setup -StyleSetup itemPort Pin Setup Select used pin (A, B)SC0ODC (SC0SEL)TXD / RXD pin Setup TXD0/RXD0 pin independent/connectionSC0MD1 (SC0IOM)Function
