Fujitsu SK-91464A-100PMC Manual del usuario - Página 17

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Default: JP24 is closed; JP3, JP4, JP5 and JP35 are open

By default, the external reset is enabled and set to immediate reset, the reset by UART is

disabled.

Note:

While a reset signal is asserted the red Reset-LED D14 is lit.

During normal operation, this LED should be off!

If JP35 (Polarity) is set, JP4 and either JP3 or JP5 have to be set, too.

If the reset LED is steadily on, check the power supply input voltage and the settings for the

reset-generation by UART.

3.10 Buttons SW1, SW2, SW3, SW4, SW5, SW6 (JP: 12, 14, 16, 20, 23, 24)

JP12, JP14, JP16, JP20, JP23

Five user push buttons SW1-SW5 can be connected to the microcontroller.

JP24

External reset circuit and button SW6 can be connected to the microcontroller.

Jumper

Setting

Closed

JP12 (SW1)

Open

Closed

JP14 (SW2)

Open

Closed

JP16 (SW3)

Open

Closed

JP20 (SW4)

Open

Closed

JP23 (SW5)

Open

Closed

JP24 (Reset)

Open

Default: JP12, JP14, JP16, JP20, JP23, JP24 = Closed

By default, all push-buttons as well as the reset circuit are connected to the microcontroller.

SK-91464A-100PMC User Guide

Chapter 3 Jumpers and Switches

Description

Pin 74 (INT0) of the MCU is connected to "SW1"