High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX
Datasheet
5.4.9
VLAN1—VLAN1 Tag Register
Offset:
9
Attribute:
Size:
R/W
Default Value:
00000000h
32 bits
This register contains the VLAN tag field to identify VLAN1 frames. For VLAN frames the legal frame
length is increased from 1518 bytes to 1522 bytes.
BITS
DESCRIPTION
31-16
15-0
Reserved
VLAN1 Tag Identifier (VTI1). This contains the VLAN Tag field to identify the VLAN1 frames. This
field is compared with the 13th and 14th bytes of the incoming frames for VLAN1 frame detection.
If used, this register must be set to 0x8100.
5.4.10
VLAN2—VLAN2 Tag Register
Offset:
A
Attribute:
Size:
R/W
Default Value:
00000000h
32 bits
This register contains the VLAN tag field to identify VLAN2 frames. For VLAN frames the legal frame
length is increased from 1518 bytes to 1522 bytes.
BITS
31-16
15-0
DESCRIPTION
Reserved
VLAN2 Tag Identifier (VTI2). This contains the VLAN Tag field to identify the VLAN2 frames. This
field is compared with the 13th and 14th bytes of the incoming frames for VLAN2 frame detection.If
used, this register must be set to 0x8100.
SMSC LAN9218
101
Revision 1.5 (07-18-06)
DATASHEET
SMSC [ SMSC CORPORATION ]
