Altera Nios Development Board - 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
Figure 2–2 . Each
switch is connected to a Stratix II general-purpose I/O pin with a pull-up
resistor as shown in
Table 2–3 . 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
Figure 2–2 . D0 – D7 are connected to general
purpose I/O pins on the Stratix II device as shown in Table 2–4 . 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