LAN9353 Datasheet, PDF (305/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

LAN9353
Bits
Description
4
Filter Multicast
When this bit is set, packets with a multicast destination address are filtered if
the address is not found in the ALR table. Broadcasts are not included in this
filter.
3
Drop Unknown
When this bit is set, packets with a unicast destination address are filtered if
the address is not found in the ALR table.
2
Use Precedence
When the priority is taken from an IPV4 packet (enabled via the Use IP bit),
this bit selects between precedence bits in the TOS octet or the DIFFSERV
table.
Type
R/W
R/W
R/W
When set, IPv4 packets will use the precedence bits in the TOS octet to
select the transmit priority queue. When cleared, IPv4 packets will use the
DIFFSERV table to select the transmit priority queue.
1
VL Higher Priority
R/W
When this bit is set and VLAN priority is enabled (via the Use Tag bit), the pri-
ority from the VLAN tag has higher priority than the IP TOS/SC field.
0
VLAN Enable
R/W
When set, VLAN ingress rules are enabled.
Default
0b
0b
1b
1b
0b
 2015 Microchip Technology Inc.
DS00001925A-page 305