Instruction Manual

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www. d igilent inc.com
Revision: January 14, 2009
Note: This document applies to REV A of the board.
215 E Main Suite D | Pullman, WA 99163
[phone] Voice and Fax
Doc: 502-161 page 1 of 4
Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners.
Overview
The Digilent FX2 Module Interface Board (MIB)
offers a ready-made solution for interfacing
peripheral modules to Digilent system boards.
Features include:
• FX2 peripheral board connector
• four 12-pin and two 6-pin Pmod
connectors
• access to JTAG scan chain
• access to signals for test points
• provision for oscillator for clock input to
system board
Functional Description
Power Connections
The FX2 MIB provides two power busses and
a ground bus. The two power busses are
labeled VCC and VCCFX2. These two busses
are made available at each connector position
on the board. There is also a ground plane that
connects the ground pins from all connectors.
The usual Digilent convention is to power the
VCC bus at 3.3V and the VCCFX2 bus at 5.0V.
However, depending on the system board
connected and the power supply used, other
voltages may be present. Use caution when
using any voltage other than 3.3V on the VCC
bus. Most Digilent system boards will be
damaged if the voltage on the VCC bus is
greater than 3.3V.
FX2 connector J10 is provided on one side of
the board for connection to Digilent system
boards, like the Nexys2, that contain an FX2-
style connector. The Digilent FX2 connector
signal convention provides for forty general-
purpose I/O signals, three clock signals, JTAG
signals, and power busses.
FX2 MIB Block Diagram