Datasheet

551

SAM7X Series [DATASHEET]

6120K–ATARM–11-Feb-14

37.5.2 Network Configuration Register

Access Type: Read-write

• SPD: Speed

Set to 1 to indicate 100 Mbit/s operation, 0 for 10 Mbit/s.

• FD: Full Duplex

If set to 1, the transmit block ignores the state of collision and carrier sense and allows receive while transmitting.

• CAF: Copy All Frames

When set to 1, all valid frames are received.

• JFRAME: Jumbo Frames

Set to one to enable jumbo frames of up to 10240 bytes to be accepted.

• NBC: No Broadcast

When set to 1, frames addressed to the broadcast address of all ones are not received.

• MTI: Multicast Hash Enable

When set, multicast frames are received when the 6-bit hash function of the destination address points to a bit that is set in the

hash register.

• UNI: Unicast Hash Enable

When set, unicast frames are received when the 6-bit hash function of the destination address points to a bit that is set in the hash

• BIG: Receive 1536 bytes frames

Setting this bit means the EMAC receives frames up to 1536 bytes in length. Normally, the EMAC would reject any frame above

1518 bytes.

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––––IRXFCSEFRHDDRFCSRLCE

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RBOF PAE RTY CLK BIG

76543210

UNI MTI NBC CAF JFRAME – FD SPD