Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Datasheet

14.5.3.18Switch Engine Admit Only VLAN Register (SWE_ADMT_ONLY_VLAN)

Register #:

1842h

Size:

32 bits

This register is used to configure the per port ingress rule for allowing only VLAN tagged packets.

BITS

DESCRIPTION

TYPE

DEFAULT

 

 

 

 

31:3

RESERVED

RO

-

 

 

 

 

2:0

Admit Only VLAN

R/W

000b

 

When set, untagged and priority tagged packets are filtered.

 

 

 

The VLAN Enable bit in the Switch Engine Global Ingress Configuration

 

 

 

Register (SWE_GLOBAL_INGRSS_CFG) needs to be set for these bits to

 

 

 

have an affect.

 

 

 

There is one enable bit per ingress port. Bits 2,1,0 correspond to switch

 

 

 

ports 2,1,0 respectively.

 

 

 

 

 

 

Revision 1.4 (08-19-08)

388

SMSC LAN9311/LAN9311i

 

DATASHEET