KSZ8563R datasheet(80/221 Pages) MICROCHIP

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KSZ8563R

DS00002418D-page 80

 2017-2018 Microchip Technology Inc.

5.1.4.19

Address Lookup Table Entry Index 2 Register

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

Address:

0x031A - 0x031B

Size:

16 bits

Bits

Description

Type

Default

15:10

RESERVED

0000_00

9:0

CPU Access Index

Whenever there is an external read or write to the Address Lookup Table,

the bucket address of the access is reported here.

0x000

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

30:3

RESERVED

0x0000000

Unknown Unicast Forwarding Port 3

1 = Forward unknown unicast packets to port 3

0 = Do not forward to that port

R/W

Unknown Unicast Forwarding Port 2

1 = Forward unknown unicast packets to port 2

0 = Do not forward to that port

R/W

Unknown Unicast Forwarding Port 1

1 = Forward unknown unicast packets to port 1

0 = Do not forward to that port

R/W

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