NuMaker-M252SD
Aug.
02, 2019
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2.5.4 1.8V Power Sources
Table 2-6 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 2-6 1.8V Power Sources
2.5.5 Power Connectors
Table 2-7 presents the power connectors.
Connector
Comment
JP1
V
DD
(1.8 V ~ 5.5 V) connector on the NuMaker-M252SD.
JP2
V
SS
connector on the NuMaker-M252SD.
Table 2-7 Power Connectors
2.5.6 USB Connectors
Table 2-8 presents the USB connectors.
Connector
Comment
ICEJ3
ICE USB connector on Nu-Link2-Me for power supply, debugging and
programming from PC.
J2
USB FS connector on NuMaker-M252SD for power supply.
Table 2-8 USB Connectors
2.5.7 Power Switches
Table 2-9 presents the power switches.
Switch
Comment
ICEJPR1
Configures the target chip operating voltage at 1.8 V / 3.3 V / 5 V.
ICEJPR2
Configures the ICE chip operating voltage at 1.8 V / 3.3 V.
SW2
Configures the target chip operating voltage at 3.3 V / 5 V.
Table 2-9 Power Switches
