LAN9211 datasheet(113/147 Pages) SMSC

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High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support

Datasheet

SMSC LAN9211

113

Revision 2.9 (03-01-12)

DATASHEET

5.4.9

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.

5.4.10

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:

Attribute:

R/W

Default Value:

00000000h

Size:

32 bits

BITS

DESCRIPTION

31-16

Reserved

15-0

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.

Offset:

Attribute:

R/W

Default Value:

00000000h

Size:

32 bits

BITS

DESCRIPTION

31-16

Reserved

15-0

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.

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