Xilinx Virtex-4 User Manual

Embedded Tri-Mode Ethernet MAC User Guide www.xilinx.com 15
UG074 (v2.2) February 22, 2010
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Chapter 1
Introduction
This chapter introduces the Virtex®-4 FPGA Embedded Tri-Mode Ethernet Media Access
Controller (MAC). It contains the following sections:
• “Ethernet MAC Overview”
• “Features”
Ethernet MAC Overview
Figure 1-1 shows the Virtex-4 FPGA Tri-Mode Ethernet MAC that is used to provide
Ethernet connectivity to the Virtex-4 FX family of devices.
The Virtex-4 FPGA Ethernet MAC has two Ethernet MACs sharing a single host interface.
Either or both of the Ethernet MACs can be selected to access the Ethernet MAC registers.
Figure 1-1: Virtex-4 FPGA Embedded Tri-Mode Ethernet MAC
PPC405
Processor
DS-PLB Port
Processor Block
ISOCM
ISPLB
DSPLB
DSOCM
Control
ISOCM
Control
DSOCM
IS-PLB Port
Reset and
Control
APU
APU
Control
DCR
Generic
Host Bus
Host
Interface
Te st
EMAC
Physical
Interface
Client
Statistics
Interface
Client Data
Interface
DCR
Interface
FPGA Auxiliary
Processor Port
EMAC
Physical
Interface
Client
Statistics
Interface
Client Data
Interface
EMAC
Block
DCR
Control
DCR
Bus
UG074_1_01_012408
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Xilinx Virtex-4 Specifications

General

Brand	Xilinx
Model	Virtex-4
Category	Motherboard
Language	English