lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 282

• Manufacturer Part Number: lan9312
• Description: Lan9312 High Performance Two Port 10/100 Managed Ethernet Switch With 32-bit Non-pci Cpu Interface
• Manufacturer: Standard Microsystems Corp.

Revision 1.2 (04-08-08)
14.3.9
31:16
BITS
15:0
RESERVED
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.
Note:
Host MAC VLAN1 Tag Register (HMAC_VLAN1)
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
"Virtual Local Area Network (VLAN) Support," on page 113
If used, this register is typically set to the standard VLAN value of
8100h.
Offset:
9h
DESCRIPTION
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
DATASHEET
282
Size:
for additional information.
32 bits
TYPE
R/W
RO
SMSC LAN9312
DEFAULT
Section 9.3,
FFFFh
Datasheet
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