Altera Cyclone III FPGA Starter Board - Manual (Page 20)

2–12 Altera Corporation
Cyclone III FPGA Starter Board Reference Manual April 2012
Interfaces
User Push-Buttons
The four user push-buttons are intended for use in controlling FPGA
designs loaded into the Cyclone III device. There is no board-specific
function for these four push-buttons.
LEDs
The board has user LEDs and board-specific LEDs. Table 2–10 lists both
user and board-specific LED pinout. A logic “0” illuminate the LEDs.
Figure 2–6 shows the LEDs.
Figure 2–6. LEDs
User LEDs
Status and debugging signals are driven to the user LEDs from FPGA
designs loaded into the Cyclone III device. There is no board-specific
function for the user LEDs.
Table 2–10. Board LED Pinout
Signal Name FPGA Pin Name Direction Type
LED0 P13 Output 2.5 V
LED1 P12 Output 2.5 V
LED2 N12 Output 2.5 V
LED3 N9 Output 2.5 V
Power LED — — —
MAX Load LED — — —
conf done LED — — —
Flash LED — — —
HSMC Present LED — — —