LAN9117_08 Datasheet, PDF (106/136 Pages) SMSC Corporation – High Performance Single-Chip 10/100 Non-PCI Ethernet Controller

5.4.9
High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
VLAN1—VLAN1 Tag Register
Datasheet
Offset:
Default Value:
9
00000000h
Attribute:
Size:
R/W
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
31-16
15-0
DESCRIPTION
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:
Default Value:
A
00000000h
Attribute:
Size:
R/W
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.
Revision 1.5 (07-11-08)
106
DATASHEET
SMSC LAN9117