lan9303m Standard Microsystems Corp., lan9303m Datasheet - Page 343

• Manufacturer Part Number: lan9303m
• Description: Small Form Factor Three Port 10/100 Managed Ethernet Switch With Dual Mii/rmii/turbo Mii
• Manufacturer: Standard Microsystems Corp.

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
SMSC LAN9303M/LAN9303Mi
13.4.4.13
31:23
BITS
22
21
20
19
18
RESERVED
VID/Priority Select Port 2
This bit determines the VID and priority in inserted or changed tags.
0: The default VID of the ingress port / priority calculated on ingress.
1: The default VID / priority of the egress port.
This is only used when the Egress Port Type is set as Hybrid.
Insert Tag Port 2
When set, untagged packets will have a tag added.The VID and priority is
determined by the
The un-tag bit in the VLAN table for the default VLAN ID also needs to be
cleared in order for the tag to be inserted.
This is only used when the Egress Port Type is set as Hybrid.
Change VLAN ID Port 2
When set, regular tagged packets will have their VLAN ID overwritten with
the Default VLAN ID of either the ingress or egress port, as determined by
the
The Change Tag bit also needs to be set.
The un-tag bit in the VLAN table for the incoming VLAN ID also needs to be
cleared, otherwise the tag will be removed instead.
Priority tagged packets will have their VLAN ID overwritten with the Default
VLAN ID of either the ingress or egress port independent of this bit.
This is only used when the Egress Port Type is set as Hybrid.
Change Priority Port 2
When set, regular tagged and priority tagged packets will have their Priority
overwritten with the priority determined by the
For regular tagged packets, the Change Tag bit also needs to be set.
The un-tag bit in the VLAN table for the incoming VLAN ID also needs to be
cleared, otherwise the tag would be removed instead.
This is only used when the Egress Port Type is set as Hybrid.
Change Tag Port 2
When set, allows the Change Tag and Change Priority bits to affect regular
tagged packets.
This bit has no affect on priority tagged packets.
This is only used when the Egress Port Type is set as Hybrid.
Buffer Manager Egress Port Type Register (BM_EGRSS_PORT_TYPE)
This register is used to configure the egress VLAN tagging rules. See
Removing, and Changing VLAN Tags," on page 91
VID/Priority Select Port 2
Register #:
VID/Priority Select Port 2
1C0Ch
bit.
DESCRIPTION
DATASHEET
343
bit.
VID/Priority Select Port 2
Size:
for additional details.
32 bits
bit.
TYPE
Section 6.5.6, "Adding,
R/W
R/W
R/W
R/W
R/W
RO
Revision 1.3 (08-27-09)
DEFAULT
0b
0b
0b
0b
0b
-