LAN9313-NZW SMSC, LAN9313-NZW Datasheet - Page 68
![Ethernet ICs Three Port 10/100 Ethernet Switch](/photos/27/13/271356/lan9313_sml.jpg)
LAN9313-NZW
Manufacturer Part Number
LAN9313-NZW
Description
Ethernet ICs Three Port 10/100 Ethernet Switch
Manufacturer
SMSC
Type
Three Port Managed Ethernet Switchr
Datasheet
1.LAN9313-NZW.pdf
(399 pages)
Specifications of LAN9313-NZW
Ethernet Connection Type
10 Base-T, 100 Base-TX
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Product
Ethernet Switches
Number Of Transceivers
1
Standard Supported
802.3, 802.3u
Data Rate
10 Mbps, 100 Mbps
Supply Voltage (max)
3.6 V
Supply Voltage (min)
0 V
Supply Current (max)
155 mA, 270 mA
Maximum Operating Temperature
+ 70 C
Package / Case
TQFP-100
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LAN9313-NZW
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
LAN9313-NZW
Manufacturer:
SMSC
Quantity:
20 000
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Revision 1.7 (06-29-10)
6.4.2
Forwarding Rules
Upon ingress, packets are filtered or forwarded based on the following rules:
When the switch is enabled for VLAN support, these following rules also apply:
Note: For the last three cases, if the VID is not in the VLAN table, the VLAN is considered foreign
If the destination port equals the source port (local traffic), the packet is filtered.
If the source port is not in the forwarding state, the packet is filtered (unless the
Port State Override
If the destination port is not in the forwarding state, the packet is filtered (unless the
Port State Override
If the Filter bit for the Destination Address is set in the ALR table, the packet is filtered.
If the packet has a unicast destination MAC address which is not found in the ALR table and the
Drop Unknown bit is set, the packet is filtered.
If the packet has a multicast destination MAC address which is not found in the ALR table and the
Filter Multicast bit is set, the packet is filtered.
If the packet has a broadcast destination MAC address and the Broadcast Storm Control level has
been reached, the packet is discarded.
If Drop on Yellow is set, the packet is colored Yellow, and randomly selected, it is discarded.
If Drop on Red is set and the packet is colored Red, it is discarded.
If the destination address was not found in the ALR table (an unknown or a broadcast) and the
Broadcast Buffer Level is exceeded, the packet is discarded.
If there is insufficient buffer space, the packet is discarded.
If the packet is untagged or priority tagged and the Admit Only VLAN bit for the ingress port is set,
the packet is filtered.
If the packet is tagged and has a VID equal to FFFh, it is filtered.
If Enable Membership Checking on Ingress is set, Admit Non Member is cleared, and the source
port is not a member of the incoming VLAN, the packet is filtered.
If Enable Membership Checking on Ingress is set and the destination port is not a member of the
incoming VLAN, the packet is filtered.
If the destination address was not found in the ALR table (as unknown or broadcast) and the VLAN
broadcast domain containment resulted in zero valid destination ports, the packet is filtered.
and the membership result is NULL. A NULL membership will result in the packet being filtered
if Enable Membership Checking is set. A NULL membership will also result in the packet being
filtered if the destination address is not found in the ALR table (since the packet would have
no destinations).
is in effect).
is in effect).
DATASHEET
68
Three Port 10/100 Managed Ethernet Switch with MII
SMSC LAN9313/LAN9313i
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