LAN9312-NZW SMSC, LAN9312-NZW Datasheet - Page 80

• Manufacturer Part Number: LAN9312-NZW
• Description: Ethernet ICs Hi Per 2 Port 10/100 Ethernet Switch
• Manufacturer: SMSC
• Type: Two Port Managed Ethernet Switchr

Specifications of LAN9312-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): 3.3 V
• Supply Voltage (min): 0 V
• Supply Current (max): 186 mA, 295 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.7 (06-29-10)
Priority = Default Priority
Priority = Default Priority
VID = Default VID
VID = Default VID
[egress_port]
[ingress_port]
[ingress_port]
[ingress_port]
Non-tagged
Default VID
[egress_port]
[egress_port]
Insert Tag
Un-tag Bit
Modify Tag
Add Tag
Y
N
Y
Hybrid tagging is summarized in
The default VLAN ID and priority of each port may be configured via the following registers:
Change Priority
[egress_port]
N
Y
Buffer Manager Port 0 Default VLAN ID and Priority Register (BM_VLAN_MII)
Buffer Manager Port 1 Default VLAN ID and Priority Register (BM_VLAN_1)
Buffer Manager Port 2 Default VLAN ID and Priority Register (BM_VLAN_2)
Send Packet Untouched
Priority = Unchanged
VID = Default VID
[egress_port]
Modify Tag
N
Y
Figure 6.9 Hybrid Port Tagging and Un-tagging
Change VLAN ID
Normal Tagged
Received VID
[egress_port]
[egress_port]
Change Tag
Un-tag Bit
N
Y
Priority = Default Priority
Priority = Default Priority
VID = Unchanged
VID = Default VID
Change Priority
Priority Tagged
[egress_port]
High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
[ingress_port]
[ingress_port]
[ingress_port]
[egress_port]
Modify Tag
N
N
Default VID
Y
Modify Tag
Un-tag Bit
Figure
N
Y
Y
DATASHEET
Change Priority
[egress_port]
Receive Tag
Y
N
6.9.
Type
80
Send Packet Untouched
Priority = Unchanged
VID = Default VID
[ingress_port]
Modify Tag
N
Strip Tag
Strip Tag
Special Tagged
Strip Tag
SMSC LAN9312
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