P0059 Terasic Technologies Inc, P0059 Datasheet - Page 34

• Manufacturer Part Number: P0059
• Description: DE2-115 EVAL BOARD
• Manufacturer: Terasic Technologies Inc
• Series: Cyclone® IVr
• Type: FPGAr

Specifications of P0059

• Contents: Board, Cables, CD, DVD, Power Adapter, Remote Controller
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: EP4CE115

Figure 4-6 Connections between the push-button and Cyclone IV E FPGA
Pushbutton depressed
Pushbutton released
Before
Debouncing
Schmitt Trigger
Debounced
Figure 4-7 Switch debouncing
There are also 18 slide switches on the DE2-115 board (See
Figure
4-8). These switches are not
debounced, and are assumed for use as level-sensitive data inputs to a circuit. Each switch is
connected directly to a pin on the Cyclone IV E FPGA. When the switch is in the DOWN position
(closest to the edge of the board), it provides a low logic level to the FPGA, and when the switch is
in the UP position it provides a high logic level.
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