lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 80
lan9312
Manufacturer Part Number
lan9312
Description
Lan9312 High Performance Two Port 10/100 Managed Ethernet Switch With 32-bit Non-pci Cpu Interface
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9312.pdf
(458 pages)
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Revision 1.2 (04-08-08)
Priority = Default Priority
Priority = Default Priority
VID = Default VID
VID = Default VID
[ingress_port]
[egress_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
Priority Tagged
Change Priority
[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
Modify Tag
Y
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
Datasheet
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