75InputInput/outputCHAPTER 4 PIN FUNCTION (μPD78054Y Subseries)4.1 Pin Function List4.1.1 Normal operating mode pins(1) Port pins (1/3)Pin Name Input/Output Function After Reset Alternate FunctionP00 Input Input only Input INTP0/TI00P01 Input/output mode can be specified INTP1/TI01P02 in 1-bit units. INTP2P03 Input/ Port 0. When used as an input port, an INTP3P04 output 8-bit input/output port. on-chip pull-up resistor can be used INTP4P05 by software. INTP5P06 INTP6P07Note1 Input Input only Input XT1P10 to P17 Port 1.8-bit input/output port.Input/output mode can be specified in 1-bit units. Input ANI0 to ANI7When used as input port, an on-chip pull-up resistor can be used bysoftwareNote2.P20 SI1P21 SO1P22 Port 2. SCK1P23 Input/ 8-bit input/output port. STBP24 output Input/output mode can be specified in1-bit units. BUSYP25 When used as an input port, an on-chip pull-up resistor can be used by SI0/SB0/SDA0P26 software. SO0/SB1/SDA1P27 SCK0/SCLNotes 1. When the P07/XT1 pin is used as an input port, set the bit 6 (FRC) of the processor clock control register(PCC) to 1 (do not use the feedback resistor internal to the subsystem clock oscillator).2. When pins P10/ANI0 to P17/ANI7 are used as an analog input of the A/D converter, set port 1 to inputmode. The on-chip pull-up resistor will automatically be disabled.Input
