lan9211 Standard Microsystems Corp., lan9211 Datasheet - Page 23

• Manufacturer Part Number: lan9211
• Description: Lan9211 High-performance Small Form Factor Single-chip Ethernet Controller With Hp Auto-mdix Support
• Manufacturer: Standard Microsystems Corp.

High-Performance Small Form Factor Single-Chip Ethernet Controller with HP Auto-MDIX Support
Datasheet
SMSC LAN9211
3.3
MCPAS
0
0
The Ethernet address fields of an Ethernet Packet, consists of two 6-byte fields: one for the destination
address and one for the source address. The first bit of the destination address signifies whether it is
a physical address or a multicast address.
The LAN9211 address check logic filters the frame based on the Ethernet receive filter mode that has
been enabled. Filter modes are specified based on the state of the control bits in
Filtering
bits are defined in more detail in the “MAC Control Register”. Please refer to
"MAC_CR—MAC Control Register"
If the frame fails the filter, the Ethernet MAC function does not receive the packet. The host has the
option of accepting or ignoring the packet.
Address Filtering Functional Description
PRMS
0
0
Modes", which shows the various filtering modes used by the Ethernet MAC Function. These
INVFILT
0
0
Table 3.1 Address Filtering Modes
Figure 3.1 VLAN Frame
for more information on this register.
DATASHEET
HO
0
0
23
HPFILT
0
1
MAC address perfect filtering only
for all addresses.
MAC address perfect filtering for
physical address and hash filtering
for multicast addresses
DESCRIPTION
Table 3.1, "Address
Revision 2.3 (08-06-08)
Section 5.4.1,