Altera Cyclone II DSP Development Board - Manual (Page 19)

Altera Corporation Reference Manual 2–11
August 2006 Cyclone II DSP Development Board
Cyclone II DSP Development Board Components
User Defined DIP Switch (S1)
S1 is a user-defined octal DIP switch available for general-purpose use. It
must be defined by the user before it can be used. In the open position,
the selected signal is driven to logic 1. In the closed position, the selected
signal is driven to logic 0.
Table 2–4 lists the pin-outs of the user DIP
switch. Figure 2–4 shows the switch labels on the switch, the labels on the
printed circuit board (PCB), and shows the open and closed switch
positions.
Figure 2–4. User-Defined Dipswitch (S1)
Table 2–4. User-Defined Dipswitch Pin-Outs
DIP Switch
Label
Board
Reference
Schematic Signal
Name
Cyclone II (U12)
Pin Number
1 0 USER_DIPSW0 AC13
2 1 USER_DIPSW1 A19
3 2 USER_DIPSW2 C21
4 3 USER_DIPSW3 C23
5 4 USER_DIPSW4 AF4
6 5 USER_DIPSW5 AC20
7 6 USER_DIPSW6 AE18
8 7 USER_DIPSW7 AE19
Closed Position
Logic 0
Open Position
Logic 1