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70 www.xilinx.com Ethernet AVB Endpoint User Guide

UG492 July 23, 2010

Chapter 7: Ethernet AVB Endpoint Reception

Single MAC Header Filter Usage Examples

Full Destination Address (DA) Match

The example illustrated in Figure 7-4 shows a single MAC Header Filter (one of the eight

provided) configured to filter on a Destination Address. In order for the frame to obtain a

match, the initial 48-bits of the received frame must exactly match the first 48-bits of the

Match Pattern Register.

This example provides backwards compatibility with the Address Filters provided in the

Tri-Mode Ethernet MAC (which must be disabled).

X-Ref Target - Figure 7-4

Figure 7-4: Filtering of Frames with a Full DA Match

rx_clk

legacy_rx_data[7:0]

legacy_rx_data_valid

rx_clk_enable

DA SA DATAL/T

VLAN

0xDA

0x01

0x02

0x03

0x04

0x05

0xFF

0x00

Match

against

Don’t-cares

Match Pattern Register

Match Enable Register

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 171 172

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