Three Port 10/100 Managed Ethernet Switch with MII
Datasheet
Hybrid tagging is summarized in Figure 6.9.
Receive Tag
Type
Non-tagged
Normal Tagged Priority Tagged
Default VID
Special Tagged
Insert Tag
[egress_port]
N
Y
Y
N
[ingress_port]
Un-tag Bit
Y
N
Default VID
[ingress_port]
Un-tag Bit
Change Priority
[egress_port]
N
Y
Add Tag
VID = Default VID
[ingress_port]
Priority = Default Priority
[ingress_port]
Modify Tag
VID = Default VID
[ingress_port]
Priority = Default Priority
[ingress_port]
Modify Tag
VID = Default VID
[ingress_port]
Send Packet Untouched
Strip Tag
Strip Tag
Priority = Unchanged
Received VID
Un-tag Bit
Y
N
N
N
Change Tag
[egress_port]
Y
Change VLAN ID
[egress_port]
Y
Change Priority
[egress_port]
Change Priority
[egress_port]
Y
N
Y
N
Modify Tag
VID = Default VID
[egress_port]
Priority = Default Priority
[egress_port]
Modify Tag
VID = Default VID
[egress_port]
Priority = Unchanged
Modify Tag
VID = Unchanged
Priority = Default Priority
[egress_port]
Send Packet Untouched
Strip Tag
Figure 6.9 Hybrid Port Tagging and Un-tagging
The default VLAN ID and priority of each port may be configured via the following registers:
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)
Revision 1.2 (04-08-08)
SMSC LAN9313/LAN9313i
DATA8S2HEET
SMSC [ SMSC CORPORATION ]
