Mcu Pins; User Buttons; User Leds And Optional Lcd; Power Supply - Fujitsu SK-91465X-100PMC User Manual

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SK-91465X-100PMC User Guide

Chapter 1 Introduction

1.3.7 MCU Pins

All pins of the microcontroller except the oscillator pins X0/1(A) are connected to the edge

connectors X4 and X5 and are directly available to the user. Furthermore, most signals are

available on the VG96 connector J1.

There are five push buttons on board, which can be connected to input-ports of the

microcontroller. Some ports may support additional functions like external interrupts (INT0,

INT1 and INT2), trigger for the Reload Timer or Input-Capture (TIN0 / ICU0, TIN2 / ICU2)

and analogue trigger (ATGX). Button SW7 issues a local wake up request to the Flexray

physical layers (AMS8221B). One additional button is reserved as System-Reset-button to

reset the MCU, but it is possible to disconnect the RST-port with JP14.

Eight user-LEDs are connected via two pull-down resistor networks to port P27_D0 -

P27_D3 and to port P16_D0 - P16_D3. Parallel to the LEDs, the connector J2 can be used

to connect a standard alphanumeric display. The resistor networks RN1 and RN2 can be

removed, to free the ports.

The on-board step-down switching regulators allow the user to connect an unregulated DC

input voltage of +12V (max. 2600 mA) to the starter-kit. The switching regulator provide the

voltages of 5V (1.6A), 3.3V (1.6A) on the starter kit. The switching regulators are short circuit

protected and provide a thermal shutdown.

UG-910056-11

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