116 www.xilinx.com Spartan-3E Starter Kit Board User Guide
UG230 (v1.0) March 9, 2006
Chapter 15:
Expansion Connectors
R
Compatible Board
The following board is compatible with the FX2 connector on the Spartan-3E Starter Kit
board:
• VDEC1 Video Decoder Board from Digilent, Inc.
http://www.digilentinc.com/Products/Detail.cfm?Prod=VDEC1
Mating Receptacle Connectors
The Spartan-3E Starter Kit board uses a Hirose FX2-100P-1.27DS header connector. The
header mates with any compatible 100-pin receptacle connector, including board-mounted
and non-locking cable connectors.
Differential I/O
The Hirose FX2 connector, header J3, supports up to 15 differential I/O pairs and two
input-only pairs using either the LVDS or RSDS I/O standards, as listed in Table 15-2. All
I/O pairs support differential input termination (DIFF_TERM) as described in the
Spartan-3E data sheet. Select pairs have optional landing pads for external termination
resistors.
These signals are not routed with matched differential impedance, as would be required
for ultimate performance. However, all traces have similar lengths to minimize skew.
FX2_IO30 C4 35 35 GND GND
FX2_IO31 B11
36 36 GND GND
FX2_IO32 A11
37 37 GND GND
FX2_IO33 A8
38 38 GND GND
FX2_IO34 G9
39 39 GND GND
FX2_IP35 D12 40 40 GND GND
FX2_IP36 C12 41 41 GND GND
FX2_IP37 A15 42 42 GND GND
FX2_IP38 B15 43 43 GND GND
FX2_IO39 C3
44 44 GND GND
FX2_IP40 C15 45 45 GND GND
GND GND 46 46 E10 FX2_CLKIN
FX2_CLKOUT D10
47 47 GND GND
GND GND 48 48 D9 FX2_CLKIO
5.0V 49 49 5.0V
5.0V 50 50 SHIELD
Table 15-1:
Hirose 100-pin FX2 Connector Pinout and FPGA Connections (J3)
(Continued)
Signal Name FPGA Pin
Shared Header Connections FX2 Connector
FPGA Pin Signal NameLED J1 J2 JP4 J6
A
(top)
B
(bottom)
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