RH850/U2A 144pin
8. Jumper Configuration Examples
R20UT5089ED0101 Rev.1.01
Page 36 of 56
July 08, 2022
8.2.4
Stand-Alone Operation with Single External Power Supply 5.0 V: Minimum Configuration 2
This example enables to operate the board with only the 5.0 V external power supply.
Since no 3.3 V voltage is available, all I/O ports can only use 5.0 V.
•
CN8: GND connection
•
CN9: 5.0 V
•
CN10: not connected, no 3.3 V
−
jumpers JP1, JP6 to JP8, JP10 to JP13, JP33, JP35 and JP37 are set to 5.0 V position [1-2]
•
CN11: not connected, no IN_1v12
−
VDD from SVR_OUTPUT (JP23[2-3]) from on-chip Switching Voltage Regulator
Refer to
3.3 Device Core Voltage (VDD) Selection
for further details about VDD voltage.
Figure 8.2 Stand-alone operation with single external power supply 5.0V
