DE4 User Manual
23
www.terasic.com
June 20, 2018
logic level or a high logic level to the FPGA, respectively. For 8-position DIP switch, when a switch
is in the DOWN position or the UPPER position, it provides a high logic level or a low logic level
to the FPGA.
Table 2–5
and
Table 2–6
lists the signal names and their corresponding Stratix IV GX
device pin numbers for slide switches and DIP switch respectively.
Table 2–5 Slide Switches Pin Assignments, Schematic Signal Names, and Functions
Board
Reference
Schematic
Signal Name
Description
I/O
Standard
Stratix IV GX
Pin Number
SW0
SLIDE_SW0
High logic level when SW in the UPPER
position
2.5-V
PIN_J7
SW1
SLIDE_SW1
2.5-V
PIN_K7
SW2
SLIDE_SW2
3.0-V
PIN_AK6
SW3
SLIDE_SW3
2.5-V
PIN_L7
Table 2–6 DIP Switch Pin Assignments, Schematic Signal Names, and Functions
Board
Reference
Schematic
Signal Name
Description
I/O
Standard
Stratix IV GX
Pin Number
SW6
SW0
User-Defined DIP switch connected to
FPGA device. When the switch is in the
ON position, a logic 0 is selected.
Similarly when the switch is in the OFF
position, a logic 1 is selected.
3.0-V
PIN_AB13
SW6
SW1
3.0-V
PIN_AB12
SW6
SW2
3.0-V
PIN_AB11
SW6
SW3
3.0-V
PIN_AB10
SW6
SW4
3.0-V
PIN_AB9
SW6
SW5
3.0-V
PIN_AC8
SW6
SW6
3.0-V
PIN_AH6
SW6
SW7
3.0-V
PIN_AG6
LEDs
The DE4 board consists of 8 user-controllable LEDs to allow status and debugging signals to be
driven to the LEDs from the designs loaded into the Stratix IV GX device. Each LED is driven
directly by the Stratix IV GX FPGA. The LED is turned on or off when the associated pins are
driven to a low or high logic level, respectively. A list of the pin names on the FPGA that are
connected to the LEDs is given in
Table 2–7
.
Summary of Contents for ALTERA DE4
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Page 54: ...DE4 User Manual 54 www terasic com June 20 2018 ...
Page 83: ...DE4 User Manual 83 www terasic com June 20 2018 Figure 3 8 Access DDR2 SO DIMM memory ...
Page 92: ...DE4 User Manual 92 www terasic com June 20 2018 Figure 3 17 Fan Control of the DE4 ...
Page 150: ...DE4 User Manual 150 www terasic com June 20 2018 Figure 5 35 SOPC builder ...