LAN9116 Просмотр технического описания (PDF) - SMSC -> Microchip

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LAN9116

Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller

SMSC -> Microchip 

Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller

Datasheet

Figure 3.2 VLAN Frame

The MAC Function recognizes transmitted and received frames tagged with either one-level or two-

level VLAN IDs. The MAC compares the thirteenth and fourteenth bytes of transmit and receive frames

to the contents of both the one-level VLAN tag register and the two-level VLAN tag register. If a match

is found, the MAC Function identifies the frame as either a one- or two-level VLAN frame, depending

on where the match was found. Upon recognizing that a frame has a VLAN tag, counter thresholds

are adjusted to account for the extra bytes that the VLAN tag adds to the frame. The maximum length

of the good packet is thus changed from 1518 bytes to 1522 bytes.

Revision 1.1 (05-17-05)

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DATASHEET

SMSC LAN9116

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