SMSC LAN9311 User Manual

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

SMSC LAN9311/LAN9311i

283

Revision 1.4 (08-19-08)

 

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 

 for additional information.

Offset:

9h

Size:

32 bits

31:16

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. 

If used, this register is typically set to the standard VLAN value of 
8100h.

R/W

FFFFh