Compatible board, Mating receptacle connectors, Differential i/o – Digilent 410-087P-KIT User Manual
Page 116
116
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.
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
. 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 Name
LED
J1
J2
JP4
J6
A
(top)
B
(bottom)