LAN9313 Datasheet, PDF (332/398 Pages) SMSC Corporation – Three Port 10/100 Managed Ethernet Switch with MII

Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
13.3.3.18 Switch 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
31:3 RESERVED
2:0 Admit Only VLAN
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.
TYPE
RO
R/W
DEFAULT
-
000b
Revision 1.2 (04-08-08)
332
DATASHEET
SMSC LAN9313/LAN9313i