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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
0xFF
0xFF
0xFF
0xFF
0xFF
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
Match
against
DA
Don’t-cares
Match Pattern Register
Match Enable Register