Chapter 8: Ps/2 Mouse/Keyboard Port - Xilinx Spartan-3A User Manual

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PS/2 Mouse/Keyboard Port
The Spartan-3A/3AN Starter Kit board includes a PS/2 mouse/keyboard port and the
standard six-pin mini-DIN connector, labeled J28 on the board.
connector, and
indicated to connect a mouse or keyboard directly to the board. Also see
PS/2 Port Using a Y-Splitter Cable," page
Table 8-1: PS/2 Connector Pinout
Spartan-3A/3AN Starter Kit Board User Guide
UG334 (v1.0) May 28, 2007
Table 8-1 shows the signals on the connector. Use the primary connections
Secondary Connection
(requires Y-splitter cable)
PS2_DATA2: (Y12)
PS2_CLK2: (U11)
Figure 8-1: PS/2 Connector Location and Signals
PS/2 DIN Pin
Primary data connection
1
PS2_DATA1
Secondary data connection when using PS/2 splitter cable
2
PS2_DATA2
GND
3
+5V
4
Primary clock connection
5
PS2_CLK1
Secondary data connection with using PS/2 splitter cable
6
PS2_CLK2
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69.
270Ω
1
2
4 3
6
5
270Ω
Signal
Chapter 8
Figure 8-1 shows the PS/2
"Adding a Second
Primary Connection
270Ω
PS2_DATA1: (V11)
270Ω
PS2_CLK1: (W12)
UG334_c8_01_052407
FPGA Pin
V11
Y12
GND
No Connection
W12
U11
65