HW-SPAR3E-SK-US-G Xilinx Inc, HW-SPAR3E-SK-US-G Datasheet - Page 20

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

Specifications of HW-SPAR3E-SK-US-G

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 122-1507

Chapter 2: Switches, Buttons, and Knob
Related Resources
20
Operation
UCF Location Constraints
Each LED has one side connected to ground and the other side connected to a pin on the
Spartan-3E device via a 390Ω current limiting resistor. To light an individual LED, drive the
associated FPGA control signal High.
Figure 2-11
I/O pin assignment, the I/O standard used, the output slew rate, and the output drive
current.
•
NET
NET
NET
NET
NET
NET
NET
NET
Rotary Encoder Interface for Spartan-3E Starter Kit (Reference Design)
http://www.xilinx.com/s3estarter
"LED<7>"
"LED<6>"
"LED<5>"
"LED<4>"
"LED<3>"
"LED<2>"
"LED<1>"
"LED<0>"
provides the UCF constraints for the four push-button switches, including the
Figure 2-11: UCF Constraints for Eight Discrete LEDs
LOC
LOC
LOC
LOC
LOC
LOC
LOC
LOC
= "D11" |
= "C11" |
= "F11" |
= "E11" |
= "E12" |
= "F12" |
= "F9" |
= "E9" |
www.xilinx.com
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
IOSTANDARD
Spartan-3E FPGA Starter Kit Board User Guide
= LVTTL |
= LVTTL |
= LVTTL |
= LVTTL |
= LVTTL |
= LVTTL |
= LVTTL |
= LVTTL |
SLEW
SLEW
SLEW
SLEW
SLEW
SLEW
SLEW
SLEW
UG230 (v1.2) January 20, 2011
= SLOW |
= SLOW |
= SLOW |
= SLOW |
= SLOW |
= SLOW |
= SLOW |
= SLOW |
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
DRIVE
= 8 ;
= 8 ;
= 8 ;
= 8 ;
= 8 ;
= 8 ;
= 8 ;
= 8 ;
R