AVDD1AREG2VREF3AVSS4MICBIAS5IN1P_GPI16IN1M_GPO17IN2P_GPI28IN2M_GPO29IN3P_GPI310IN3M_GPO311IN4P_GPI412IN4M_GPO413SHDNZ14ADDR1_MISO15ADDR0_SCLK16SCL_MOSI17SDA_SSZ18IOVDD19GPIO120SDOUT21BCLK22FSYNC23DREG24EP25