Figure 2-7 Separate The Nu-Link2-Me From Numaker-M252Sd; Table 2-11 Supply External Power For M252 Platform - Nuvoton NuMicro M252 Series User Manual

External V Connector
DD
(JP1)
USB Power Connector
(J2)
External V Connector
SS
(JP2)

Figure 2-7 Separate the Nu-Link2-Me from NuMaker-M252SD

Table 2-11 presents all power models when supplies external power through M252 platform. The
M252 platform external power sources are highlighted in yellow.
Target Chip
[1]
Model Vin
Voltage
7 V ~ 12 V
4 3.3 V
Input
5 3.3 V X
7 V ~ 12 V
6 5 V
Input
7 5 V X
[5]
8 1.8 V ~ 5.5 V Ignore
[5]
9 1.8 V ~ 5.5 V Ignore
X: Unused.
Note:
1. The Vin input voltage will be converted by voltage regulator UP2 to 5 V.
0Ω should be removed from ICEJPR1's MCUVCC and 1.8 V / 3.3 V / 5 V.
2.
0Ω should be soldered between ICEJPR2's ICEVCC and 1.8 V / 3.3 V.
3.
4. The ICE chip voltage should be close to the target chip voltage.
5. JP1 external power input only provides voltage to target chip. Supply external power to Vin or J2 can provide
5V to NU1 pin5 (5V) and 3.3V to NU1 pin4 (3VCC).

Table 2-11 Supply External Power for M252 platform

Aug. 02, 2019
NU1 pin8 (Vin)
SW2
J2 ICEJ3
Selection
NU1
X Ignore
3VCC
Connect NU1
Ignore
to PC 3VCC
NU1
X Ignore
5VCC
Ignore
Connect NU1
to PC 5VCC
Connect to
[5]
Ignore OFF
PC
Nu-Link2-Me
[5]
Ignore OFF
removed
Page 19 of 38
NuMaker-M252SD
Separate Nu-Link2-Me
ICEJPR1 ICEJPR2
JP1 (MCUVCC) (ICEVCC)
[2]
Selection Selection
Remove
3.3 V output
resistor
Remove
3.3 V output
resistor
Remove
5 V output
resistor
Remove
5 V output
resistor
DC Input Remove
1.8 V / 3.3 V 1.8 V / 3.3 V
1.8 V ~ 5.5 V resistor
DC Input
X
1.8 V ~ 5.5 V
"
ICE Chip
[4]
Voltage
[3]
3.3 V 3.3 V
3.3 V 3.3 V
3.3 V 3.3 V
3.3 V 3.3 V
X X
Rev 1.00