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.
8.2 Stand-alone operation with single external power supply 5.0V
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