User manual

Chapter 3. Power Supply
3.1. Requirements
This RSK board operates from a 5V DC power supply.
A diode provides reverse polarity protection only if a current limiting power supply is used.
All RSK boards are supplied with an E8a debugger. This product is able to power the RSK board with up to 300mA. When the RSK is
connected to another system then that system should supply power to the RSK.
All RSK boards have an optional centre positive supply connector using a 2.1mm barrel power jack.
Warning
The RSK board is neither under nor over voltage protected. Use a centre positive supply for this board.
3.2. 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.
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