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LAN9312 Datasheet(PDF) 387 Page - SMSC Corporation |
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LAN9312 Datasheet(HTML) 387 Page - SMSC Corporation |
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387 / 458 page ![]() High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface Datasheet SMSC LAN9312 387 Revision 1.2 (04-08-08) DATASHEET 14.5.3.18 Switch Engine Admit Only VLAN Register (SWE_ADMT_ONLY_VLAN) This register is used to configure the per port ingress rule for allowing only VLAN tagged packets. Register #: 1842h Size: 32 bits BITS DESCRIPTION TYPE DEFAULT 31:3 RESERVED RO - 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. R/W 000b |
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