KSZ9567RTXI datasheet(88/232 Pages) MICROCHIP

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KSZ9567R

DS00002329D-page 88

 2017-2019 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

30:7

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

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