GPIO221GPIO232GPIO243GPIO254GPIO265GPIO276GPIO287GPIO298VCCIO3V39GND10VCC1V211GPIO3412GPIO3513GPIO3614GPIO3715GPIO3816RESETN17STESTRESETN18DEBUG19GPIO3920GPIO021GPIO122GPIO223GPIO324GPIO425GPIO526GPIO627GPIO728VCC1V229VCCIO3V330XI/CLKIN31XIO32VCC1V233VUSB3V334D_DM35D_DP36DRREF37ADC338ADC239ADC140ADC_REFP41VCC3V3A42AGND43DAC_REFP44DAC145DAC046GPIO1247GPIO1348EXP49