Power Supply; Requirements; Power-Up Behaviour - Renesas RX Series User Manual

RSKRX231

2.Power Supply

2.1

Requirements

This RSK is supplied with an E1 debugger. The debugger is able to power the RSK board with up to 200mA.
When the RSK is connected to another system then that system should supply power to the RSK. This board
has an optional centre positive supply connector using a 2.0mm barrel power jack.
Details of the external power supply requirements for the RSK, and configuration are shown in Table 2-1
below. The default RSK power configuration is shown in
Connector
PWR Input 5VDC
J9 Setting J11 Setting
All open
Pin1-2 shorted
All open
Pin2-3 shorted
All open
Pin1-2 shorted Pin1-2 shorted
Pin2-3 shorted
All open
Pin2-3 shorted Pin1-2 shorted
Pin2-3 shorted
The main power supply connected to PWR should supply a minimum of 5W to ensure full functionality.
2.2

Power-Up Behaviour

When the RSK is purchased, the RSK board has the 'Release' build of the example tutorial software pre-
programmed into the Renesas microcontroller. Please consult the 'Renesas Starter Kit Code Generator
Tutorial Manual' for further information of this example.
Rev.
R20UT3027EG0100 1.00
Aug 24, 2015
Table 2-1: PWR Connector Requirements
R244
Setting
Don't care DO NOT USE
Fit
PWR Connector/ CON_5V/
Unregulated_VCC
DNF
Fit
CON_3V3/
DNF
PWR Connector/ CON_5V,
Don't care
Unregulated_VCC/ E1(5V)
Don't care DO NOT USE
Fit
DNF EXT_BATT
Don't care
Don't care DO NOT USE
Fit
DNF VBUS0
Don't care
Table 2-2: Main Power Supply Requirements
bold, blue text.
Supply voltage
Supply Source
E1(3V3)
2. Power Supply
Board_VCC
Board_5V
UC_VCC
DO NOT USE DO NOT USE
1.8V
5V
3.3V
n/a 3.3V
5V 5V
DO NOT USE DO NOT USE
1.8V
5V 3.3V
5V
DO NOT USE DO NOT USE
1.8V
5V 3.3V
5V
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