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Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9311/LAN9311i 283 Revision 1.4 (08-19-08)
DATASHEET
14.3.9 Host MAC VLAN1 Tag Register (HMAC_VLAN1)
This read/write register contains the VLAN tag field to identify VLAN1 frames. When a VLAN1 frame
is detected, the legal frame length is increased from 1518 bytes to 1522 bytes. Refer to Section 9.3,
"Virtual Local Area Network (VLAN) Support," on page 114 for additional information.
Offset: 9h Size: 32 bits
BITS DESCRIPTION TYPE DEFAULT
31:16 RESERVED RO -
15:0
VLAN1 Tag Identifier (VTI1)
This field contains the VLAN Tag used to identify VLAN1 frames. This field
is compared with the 13th and 14th bytes of the incoming frames for VLAN1
frame detection.
Note: If used, this register is typically set to the standard VLAN value of
8100h.
R/W FFFFh