KSZ9567R_V01 datasheet(89/233 Pages) MICROCHIP

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DS00002329E-page 89

KSZ9567R

5.1.4.20

Unknown Unicast Control Register

The following three registers control forwarding of packets with 1) unknown unicast destination address, 2) unknown

multicast destination address, and 3) unknown VLAN ID.

If a received packet falls into more than one of these categories, the precedence is:

Unknown VID

Unknown Unicast

Unknown Multicast

5.1.4.21

Unknown Multicast Control Register

Address:

0x0320 - 0x0323

Size:

32 bits

Bits

Description

Type

Default

Unknown Unicast Packet Forward

1 = Enable forwarding of unknown unicast packets to the ports specified

below

0 = Disable unknown unicast packet forwarding

R/W

30:7

RESERVED

0x000000

6:0

Unknown Unicast Forwarding Ports

Bit 0 is for port 1

Bit 1 is for port 2, etc.

1 = Forward unknown unicast packets to that port

0 = Do not forward to that port

All ones = Forwarded to all ports

All zeros = Forwarded to no ports

R/W

000_0000b

Address:

0x0324 - 0x0327

Size:

32 bits

Bits

Description

Type

Default

Unknown Multicast Packet Forward

1 = Enable forwarding of unknown multicast packets to the ports specified

below

0 = Disable unknown multicast packet forwarding

R/W

30:7

RESERVED

0x000000

6:0

Unknown Multicast Forwarding Ports

Bit 0 is for port 1

Bit 1 is for port 2, etc.

1 = Forward unknown multicast packets to that port

0 = Do not forward to that port

All ones = Forwarded to all ports

All zeros = Forwarded to no ports

R/W

000_0000b

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