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4 switch settings, 5 connection to the target system, 6 connection to the external power source – Renesas Single-Chip Microcomputer M34551T2-MCU User Manual

Page 29: 7 turning the power on

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5.4 Switch Settings

The PCA7745 board is equipped with switch SW1 for setting the ROM type. Set switch SW1
according to the type of EPROM to be used as shown in Table 5.1.

Table 5.1 Setting switch SW1 on PCA7745

5.5 Connection to the Target System

For method of connecting the MCU board to the target system when using this product as an
evaluation board, refer to "4.5 Connecting the MCU board to the Target System".

5.6 Connection to the External Power Source

If using the M34551T2-MCU board as an evaluation board, you must supply power from an external
source. Use a power source capable of delivering +5 V or +12 V. Table 5.2 gives the pin positions
for the external power source input cable.

Table 5.2 Pin positions for the external power source input cable

5.7 Turning the Power On

After checking connection of the target system and external power source for the evaluation board,
turn the target system and external power supply on. And turn on the power to each equipment
following the procedure below successively.

(1) Turn on the target system.
(2) Turn on the external power source for the evaluation board.

Also, follow steps (1) and (2) when powering off.

(1) Turn off the target system.
(2) Turn off the external power source for the evaluation board.

Setting

256

512

Device

M5M27C2566AK

M5M27C512ALK

Pin No.

1

2

3

4

Color

Red

Black

White

-

Function

Input (+5 V)

GND

Input (+12 V)

Not used