Chapter 15: Expansion Connectors; Hirose 100-Pin Fx2 Edge Connector (J17); Expansion Connector Compatibility; Voltage Supplies To The Connector - Xilinx Spartan-3A User Manual

Chapter 15: Expansion Connectors

Hirose 100-Pin FX2 Edge Connector (J17)

A 100-pin edge connector is located along the right edge of the board. This connector is a
Hirose FX2-100P-1.27DS header with 1.27 mm pitch. Throughout the documentation, this
connector is called the FX2 connector.
As shown in
Three signals are reserved primarily as clock signals between the board and FX2 connector,
although all three connect to full I/O pins.

Expansion Connector Compatibility

For the majority of applications, the FX2 connector on the Spartan-3A/3AN Starter Kit
board is compatible with the other Xilinx development boards. The Spartan-3E Starter Kit
board and XC3S1600E Starter Kit board optionally provide limited differential I/O
capability on the FX2 connector. The Spartan-3A/3AN Starter Kit board provides
enhanced differential I/O support using the
•
•
Furthermore, the Spartan-3A/3AN Starter Kit board supports the other
Compatible Boards," page

Voltage Supplies to the Connector

The Spartan-3A/3AN Starter Kit board provides power to the Hirose 100-pin FX connector
and any attached board via two supplies (see
voltage source for any 5V logic on the attached board or alternately provides power to any
voltage regulators on the attached board.
122
Figure 15-2, 43 FPGA I/O pins interface to the FX2 connector.
FPGA
(See Table)
(M22)
(L22)
(L21)
Figure 15-2: FPGA Connections to the Hirose 100-Pin Edge Connector
Spartan-3E Starter Kit board
www.xilinx.com/s3estarter
XC3S1600E MicroBlaze Embedded Development Board
www.xilinx.com/sp3e1600e
124.
www.xilinx.com
Hirose 100-pin Expansion
Connector (J17)
FX2_IO<40:1>
(See Table)
FX2_CLKIN
(B.46)
FX2_CLKOUT
(A.47)
FX2_CLKIO
(B.48)
VCCO_012 (3.3V)
5.0V
GND
"Differential I/O Connectors," page
Figure 15-2). The 5.0V supply provides a
Spartan-3A/3AN Starter Kit Board User Guide
UG334_c15_02_052407
126.
"FX2-Connector
UG334 (v1.0) May 28, 2007
R