Push-button switches (sw0 - sw3), Individual leds (d0 - d7) – Altera Nios Development Board User Manual
Page 17
Altera Corporation
2–9
July 2005
Nios Development Board Reference Manual, Stratix II Edition
Board Components
Push-Button
Switches (SW0 -
SW3)
SW0 – SW3 are momentary-contact push-button switches and are used to
provide stimulus to designs in the Stratix II device. See
. Each
switch is connected to a Stratix II general-purpose I/O pin with a pull-up
resistor as shown in
. Each Stratix II device pin will see a logic 0
when its corresponding switch is pressed.
Individual LEDs
(D0 - D7)
This Nios development board provides eight individual LEDs connected
to the Stratix II device. See
. D0 – D7 are connected to general
purpose I/O pins on the Stratix II device as shown in
. When the
Stratix II pin drives logic 1, the corresponding LED turns on.
Table 2–3. Push Button Switches Pin Out
Table
Button
Stratix II Pin
SW0
W24
SW1
W23
SW2
Y24
SW3
Y23
Table 2–4. LED Pin Out Table
LED
Stratix II Pin
D0
AD26
D1
AD25
D2
AC25
D3
AC24
D4
AB24
D5
AB23
D6
AB26
D7
AB25