lan9221 Standard Microsystems Corp., lan9221 Datasheet - Page 115

• Manufacturer Part Number: lan9221
• Description: High-performance 16-bit Non-pci 10/100 Ethernet Controller With Variable Voltage I/o
• Manufacturer: Standard Microsystems Corp.

High-Performance 16-bit Non-PCI 10/100 Ethernet Controller with Variable Voltage I/O
Datasheet
SMSC LAN9221/LAN9221i
5.4.9
5.4.10
31-16
31-16
BITS
BITS
15-0
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.
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.
VLAN1—VLAN1 Tag Register
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.
VLAN2—VLAN2 Tag Register
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.
Offset:
Default Value:
Offset:
Default Value:
9
00000000h
A
00000000h
DATASHEET
115
DESCRIPTION
DESCRIPTION
Attribute:
Size:
Attribute:
Size:
R/W
32 bits
R/W
32 bits
Revision 2.6 (12-04-08)