Power Supply; Requirements; Power-Up Behaviour - Renesas R0K521276S001BE User Manual

RSKSH7269

2. Power Supply

2.1

Requirements

This RSK is supplied with an E10A 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. All RSK and
RSK+ boards have an optional centre positive supply connector using a 2.0mm barrel power jack.
Details of the external power supply requirements for the RSK, and connections are shown in Table 2-1 below.
Connector
PWR Regulated, 5V DC or 7-15V DC
CAUTION:
In order for the debug LCD to operate, the following jumper settings must be made for the different power supply
options:
Jumper RSK Powered by External 5V Supply
J16 Jumper across pins 1 and 2.
J17 Jumper across pins 1 and 2.
The main power supply connected to PWR should supply a minimum of 10W to ensure full functionality.
2.2

Power-Up Behaviour

When the RSK is purchased, the RSK board has the 'Release' or stand-alone code from the example tutorial code
pre-programmed into the Renesas microcontroller. On powering up the board the user LEDs will start to flash.
After 200 flashes or after pressing any switch, the LEDs will flash at a rate controlled by the potentiometer.
R20UT0592EG0100 Rev. 1.00
May 23, 2012
There is no Over Voltage protection
Always confirm the Power supply settings before applying power
Table 2-1: Main Power Supply Requirements
Table 2-2: LCD Power Supply Options
Supply Voltages
RSK Powered by External 7 to 15V Supply
Open pins 1 and 2.
Open pins 1 and 2
2. Power Supply
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