LAN9311 Datasheet, PDF (388/461 Pages) SMSC Corporation – Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface

Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
14.5.3.18 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
31:3
2:0
DESCRIPTION
RESERVED
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 2.0 (02-14-13)
388
DATASHEET
SMSC LAN9311/LAN9311i