Voltage Supply; Ucf Location Constraints; Related Resources - Xilinx Spartan-3E User Manual

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Voltage Supply

The PS/2 port on the Spartan-3E Starter Kit board is powered by 5V. Although the
Spartan-3E FPGA is not a 5V-tolerant device, it can communicate with a 5V device using
series current-limiting resistors, as shown in

UCF Location Constraints

Figure 8-6
pin assignment and the I/O standard used.

Related Resources

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Spartan-3E Starter Kit Board User Guide
UG230 (v1.0) March 9, 2006
provides the UCF constraints for the PS/2 port connecting, including the I/O
NET "PS2_CLK" LOC = "G14" |
NET "PS2_DATA" LOC = "G13" |
Figure 8-6: UCF Location Constraints for PS/2 Port
PS/2 Mouse/Keyboard Protocol
http://www.computer-engineering.org/ps2protocol/
PS/2 Keyboard Interface
http://www.computer-engineering.org/ps2keyboard/
PS/2 Mouse Interface
http://www.computer-engineering.org/ps2mouse/
www.xilinx.com
Figure 8-1.
IOSTANDARD = LVCMOS33 |
IOSTANDARD = LVCMOS33 |
Voltage Supply
DRIVE = 8 | SLEW = SLOW
DRIVE = 8 | SLEW = SLOW
65
;
;