Altera cyclone V Technical Reference page 1365

Hard processor system

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MAC_Frame_Filter

Altera Corporation

When set, this bit indicates that all received frames

with a multicast destination address (first bit in the

destination address field is '1') are passed. When reset,

filtering of multicast frame depends on HMC bit.

When this bit is set, the Address Check block operates

in inverse filtering mode for the DA address

comparison for both unicast and multicast frames.

When reset, normal filtering of frames is performed.

When set, MAC performs destination address filtering

of received multicast frames according to the hash

table. When reset, the MAC performs a perfect

destination address filtering for multicast frames, that

is, it compares the DA field with the values

programmed in DA registers.

When set, MAC performs destination address filtering

of unicast frames according to the hash table. When

reset, the MAC performs a perfect destination address

filtering for unicast frames, that is, it compares the DA

field with the values programmed in DA registers.

Allows Filter of MC Frames

All Rcvd MC Frames Pass

Normal Inverse Filter

Address Check Block Inverse Filter

MAC Filters with Compare

MAC Filters with Hash Table

MAC Filters with Compare

MAC Filters with Hash Table

Ethernet Media Access Controller

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