Nuvoton NuMicro M261 Series User Manual

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Nuvoton NuMicro M261 Series User Manual Manual pdf 16 page image

NuMaker-IoT-M263AAug 06, 2019 Page 16 of 50 Rev 1.00NUMAKER-IoT-M263A USER MANUALMaker Nu-mbed NUC472 User ManualSystem Configuration2.52.5.1 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-IoT-M263A.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 toM263 platform and Nu-Link2-Me.J2 USB_VBUSIf target chip M263 acts as USB Device, USB connectoron NuMaker-IoT-M263A supplies 5 V power from PC toM263 platform and Nu-Link2-Me.If target chip M263 acts as USB Host, USB connectoron NuMaker-IoT-M263A supplies 5 V power from M263platform to PC.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: M263 operating voltage range is from 1.8 V to 3.6V. Do not switch SW2.1 (NU1 5VCC) to ON.CON3 DC5V_INExternal 5 V from power adapter to on-board modules.Note: It is necessary if user uses module on mini PCIeconnector.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 M263 platform or ICE chip.UP1 USB_VBUS UP1 converts USB_VBUS to 3.3 V and supplies 3.3 Vto M263 platform.