77CHAPTER 4 PIN FUNCTION (μPD78058FY 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 Port 0. Input only Input INTP0/TI00P01 Input/ 8-bit input/output port. Input/output mode can be specified Input INTP1/TI01P02 output bit-wise. INTP2P03 If used as an input port, an on-chip INTP3P04 pull-up resistor can be used by INTP4P05 software. INTP5P06 INTP6P07Note 1 Input Input only Input XT1P10 to P17 Input/ Port 1. Input ANI0 to ANI7output 8-bit input/output port.Input/output mode can be specified bit-wise.If used as input port, an on-chip pull-up resistor can be used bysoftwareNote 2.P20 Input/ Port 2. Input SI1P21 output 8-bit input/output port. SO1P22 Input/output mode can be specified bit-wise. SCK1P23 If used as an input port, an on-chip pull-up resistor can be used by STBP24 software. BUSYP25 SI0/SB0/SDA0P26 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 using pins P10/ANI0 to P17/ANI7 as analog input for the A/D converter, set port 1 to the inputmode. The on-chip pull-up resistor will be automatically disabled.
