NuMaker-M032KISep. 24, 2019 Page 18 of 47 Rev 1.00NUMAKER-M032KI USER MANUALMaker Nu-mbed NUC472 User ManualSystem Configuration2.5.1 VIN Power SourceTable 2-3 presents the Vin power source.Connector Net Name inSchematic CommentNU1 pin8 NU1_VINBoard external power source, with voltage range from 7V to 12 V. The voltage regulator UP2 converts the NU1pin8 input voltage to 5 V and supplies it to NuMaker-M032KI.Table 2-3 Vin Power Source2.5.2 5 V Power SourcesTable 2-4 presents the 5 V power sources.Connector Net Name inSchematic CommentICEJ3 USB_HS_VBUS ICE USB connector supplies 5 V power from PC toM032 platform and Nu-Link2-Me.J2 USB_VBUS USB connector on NuMaker-M032KI supplies 5 Vpower from PC to M032 platform and Nu-Link2-Me.NU1 pin5 NU1_5VCCICEJ3, J2 or NU1 pin8 supplies 5 V power to NU1 pin5.NU1 pin5 supplies 5 V power to target chip or Arduinoadapter board.Note: M032 operating voltage range is from 1.8 V to 3.6V. Do not switch SW2.1(NU1 5VCC) to ON.Table 2-4 5V Power Sources2.5.3 3.3 V Power SourcesTable 2-5 presents the 3.3 V power sources.Voltage Regulator 5V Source CommentICEUP1 USB_HS_VBUS ICEUP1 converts USB_HS_VBUS to 3.3 V and supplies3.3V to M032 platform or ICE chip.UP1 USB_VBUSUP1 converts USB_VBUS to 3.3 V and supplies 3.3 Vto M032 platform.Note: SW2.2(NU1 3VCC) should be switched to ON.UP1 NU1_5VCCUP1 converts NU1_5VCC to 3.3 V and supplies 3.3 V toM032 platform.Note: SW2.2(NU1 3VCC) should be switched to ON.Table 2-5 3.3 V Power Sources