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Chapter 3. Power Supply
3.1. Requirements
This CPU board operates from a 5V power supply.
A diode provides reverse polarity protection only if a current limiting power supply is used.
All CPU boards are supplied with an E8 debugger. This product is able to power the CPU board with up to 300mA. When the CPU board is
connected to another system, that system should supply power to the CPU board.
All CPU boards have an optional centre positive supply connector using a 2.0mm barrel power jack.
Warning
The CPU board is neither under not over voltage protected. Use a centre positive supply for this board.
3.2. Power – Up Behaviour
When the RSK is purchased the CPU 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. Pressing switch 2 will cause the LEDs to flash at a rate
controlled by the potentiometer.
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