HW-SPAR3E-SK-US-G Xilinx Inc, HW-SPAR3E-SK-US-G Datasheet - Page 63

• 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

PS/2 Mouse/Keyboard Port
Spartan-3E FPGA Starter Kit Board User Guide
UG230 (v1.2) January 20, 2011
R
The Spartan
standard 6-pin mini-DIN connector, labeled J14 on the board.
connector, and
connector attach 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
PS/2 DIN Pin
1
2
3
4
5
6
®
4
-3E FPGA Starter Kit board includes a PS/2 mouse/keyboard port and the
2
Table 8-1
6
DATA (PS2_DATA)
Reserved
GND
+5V
CLK (PS2_CLK)
Reserved
Figure 8-1: PS/2 Connector Location and Signals
5
1
3
shows the signals on the connector. Only pins 1 and 5 of the
www.xilinx.com
Signal
270Ω
270Ω
PS2_DATA: (G13)
PS2_CLK: (G14)
Figure 8-1
FPGA Pin
GND
G13
G13
G14
G13
UG230_c8_01_021806
—
Chapter 8
shows the PS/2
63