User Leds And Optional Lcd; Power Supply - Fujitsu SK-91F467D-208PFV User Manual

SK-91F467D-208PFV V1.1
Introduction

1.3.9 User LEDs and optional LCD

Sixteen user-LEDs are connected via two pull-down resistor networks to port P25 and to port
P16. Parallel to the LEDs on port P25, the connector J6 can be used to connect a standard
alphanumeric display. The resistor networks RN2 and RN3 can be removed to free the ports.

1.3.10 Power Supply

The four on-board step-down switching regulators allow the user to connect an unregulated
DC input voltage between +9 V to +12 V (max. 2000 mA) to the Starterkit. The switching
regulators provide the voltages of 5 V(3 A), 3.3 V(3 A), 2.5 V(1.5 A) and 1.8 V(1.5 A) on the
Starterkit. These voltages give also the possibility to connect an optional graphic-controller
Starterkit to the board. The switching regulators are short circuit protected and provide a
thermal shutdown.
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