Digilent FX12 - Manual (Page 16)

Digilent
FX12 Reference Manual
www.digilentinc.com
Copyright Digilent, Inc. Page 16/18 Doc: 502-046
Marvell Ethernet Transceiver
The FX12 board includes a Marvell 10/100/1G Ethernet Transceiver (the “PHY”). The Virtex-4
contains a hard-IP Ethernet MAC that can directly drive the Marvell PHY, or a soft-IP MAC can be
programmed into available gates in the Virtex-4 fabric.
Marvell maintains tight control of their data sheets. For further information on the Marvell PHY, please
contact NuHorizons for assistance with entering into a non-disclosure agreement with Marvell.
FX12 Marvel PHY Circuit Diagram
Expansion Connectors
The FX12 provides two primary expansion connectors: a Hirose 100-pin FX2 high-density board-to-
board or board-to-cable connector and a second connector that can accommodate FastDAACS A/D
and D/A demo boards from Linear Technology. The FX2 connector includes 17 matched pairs of I/O
signals from the FPGA (34 total signals), as well as the JTAG programming signals and three clock
signals (which can also be used as general I/O’s). Mating board or cable connectors can readily be