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PS/2 Mouse/Keyboard Port
The Spartan-3E Starter Kit board includes a PS/2 mouse/keyboard port and the standard
6-pin mini-DIN connector, labeled J14 on the board.
and
to the FPGA.
Table 8-1: PS/2 Connector Pinout
Both a PC mouse and keyboard use the two-wire PS/2 serial bus to communicate with a
host device, the Spartan-3E FPGA in this case. The PS/2 bus includes both clock and data.
Both a mouse and keyboard drive the bus with identical signal timings and both use 11-bit
words that include a start, stop and odd parity bit. However, the data packets are
Spartan-3E Starter Kit Board User Guide
UG230 (v1.0) March 9, 2006
Table 8-1
shows the signals on the connector. Only pins 1 and 5 of the connector attach
1
2
4
3
6
5
Figure 8-1: PS/2 Connector Location and Signals
PS/2 DIN Pin
1
DATA (PS2_DATA)
2
Reserved
3
GND
4
+5V
5
CLK (PS2_CLK)
6
Reserved
www.xilinx.com
Figure 8-1
270Ω
PS2_DATA: (G13)
270Ω
Signal
Chapter 8
shows the PS/2 connector,
PS2_CLK: (G14)
UG230_c8_01_021806
FPGA Pin
G13
G13
GND
—
G14
G13
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