Renesas Single-Chip Microcomputer SH7203 Technical Information PDF herunterladen (Seite 7)

Chapter 3. Power Supply

3.1. Requirements

This CPU board can operate from either a 5V power supply or an 8V to 15V supply.

Please refer to the following table while selecting the power supply voltage range -

Jumpers SEL_5VA and

SEL_5VB Fitted

Jumpers SEL_5VA and

SEL_5VB Removed

Power Supply

5V only 8V to 15V (Default setting)*

* - 12V power supply is included with the RSK+ board.

Table 3-1 Power Supply Options

Warning - Care must be taken to ensure that an appropriate supply is used. Failing to do this may cause permanent damage to

the board.

A diode provides reverse polarity protection only if a current limiting power supply is used.

All CPU boards have a centre positive supply connector using a 2.0mm barrel power jack.

Warning - The CPU board is 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 any switch will cause the LEDs to flash

at a rate controlled by the potentiometer.

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Renesas Single-Chip Microcomputer SH7203 Technical Information Seite 7