HW-SPAR3E-SK-UK-G Xilinx Inc, HW-SPAR3E-SK-UK-G Datasheet - Page 15

• Manufacturer Part Number: HW-SPAR3E-SK-UK-G
• Description: KIT STARTER SPARTAN-3E
• Manufacturer: Xilinx Inc

Specifications of HW-SPAR3E-SK-UK-G

• Tool / Board Applications: General Purpose MCU, MPU, DSP, DSC
• Development Tool Type: Hardware / Software - Starter Kit
• Mcu Supported Families: Spartan-3E
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: HW-SPAR3E-SK-US-UK-G; HW-SPAR3E-SK-US-UK-G

Switches, Buttons, and Knob
Slide Switches
Spartan-3E FPGA Starter Kit Board User Guide
UG230 (v1.2) January 20, 2011
Locations and Labels
Operation
UCF Location Constraints
R
The Spartan
The slide switches are located in the lower right corner of the board and are labeled SW3
through SW0. Switch SW3 is the left-most switch, and SW0 is the right-most switch.
When in the UP or ON position, a switch connects the FPGA pin to 3.3V, a logic High.
When DOWN or in the OFF position, the switch connects the FPGA pin to ground, a logic
Low. The switches typically exhibit about 2 ms of mechanical bounce and there is no active
debouncing circuitry, although such circuitry could easily be added to the FPGA design
programmed on the board.
Figure 2-2
assignment and the I/O standard used. The PULLUP resistor is not required, but it defines
the input value when the switch is in the middle of a transition.
provides the UCF constraints for the four slide switches, including the I/O pin
®
-3E FPGA Starter Kit board has four slide switches, as shown in
www.xilinx.com
(N17)
SW3
Figure 2-1: Four Slide Switches
(H18)
SW2
(L14)
SW1
(L13)
SW0
UG230_c2_01_021206
Chapter 2
HIGH
LOW
Figure
2-1.
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