NuMaker-M252KG
July.
08, 2020
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Rev 1.00
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3.4.2 5 V Power Sources
Table 3-5 presents the 5 V power sources.
Connector
Net Name in
Schematic
Comment
ICEJ3
USB_HS_VBUS
ICE USB connector supplies 5 V power from PC to
M252 platform and Nu-Link2-Me.
J2
USB_VBUS
USB connector on NuMaker-M252KG supplies 5 V
power from PC to M252 platform and Nu-Link2-Me.
NU1 pin5
NU1_5VCC
ICEJ3, J2 or NU1 pin8 supplies 5 V power to NU1 pin5.
NU1 pin5 supplies 5 V power to target chip or Arduino
adapter board.
Table 3-5 5V Power Sources
3.4.3 3.3 V Power Sources
Table 3-6 presents the 3.3 V power sources.
Voltage Regulator
5V Source
Comment
ICEUP1
USB_HS_VBUS
ICEUP1 converts USB_HS_VBUS to 3.3 V and supplies
3.3V to M252 platform
or ICE chip.
UP1
USB_VBUS
UP1 converts USB_VBUS to 3.3 V and supplies 3.3 V
to M252 platform.
Note:
SW2.2(NU1 3VCC) should be switched to ON.
UP1
NU1_5VCC
UP1 converts NU1_5VCC to 3.3 V and supplies 3.3 V to
M252 platform.
Note:
SW2.2(NU1 3VCC) should be switched to ON.
Table 3-6 3.3 V Power Sources
3.4.4 1.8V Power Sources
Table 3-7 presents the 1.8 V power source.
Voltage Regular
5V Source
Comment
ICEUP2
USB_HS_VBUS
ICEUP2 converts USB_HS_VBUS to 1.8V and supplies
1.8V to M252 platform
or ICE chip.
Table 3-7 1.8V Power Sources
