lan9312 Standard Microsystems Corp., lan9312 Datasheet - Page 377

• 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.

High Performance Two Port 10/100 Managed Ethernet Switch with 32-Bit Non-PCI CPU Interface
Datasheet
SMSC LAN9312
14.5.3.9
31:18
BITS
17:0
RESERVED
Port Default VID and Priority
When the port VID table is selected (PVIDnVLAN=1 of the
VLAN Command Register
the default VID for the port and bits 14:12 specify the default priority. All
other bits of this field are reserved. These bits are used when a packet is
received without a VLAN tag or with a NULL VLAN ID. By default, the VID
and priority for all three ports is 0.
Note:
VLAN Data
When the VLAN table is selected (PVIDnVLAN=0 of the
VLAN Command Register
table entry as follows:
Switch Engine VLAN Write Data Register (SWE_VLAN_WR_DATA)
This register is used write the VLAN or Port VID tables.
BITS
11:0
17
16
15
14
13
12
Values of 0 and FFFh should not be used since they are special
VLAN IDs per the IEEE 802.3Q specification.
Register #:
Member Port 2
Indicates the configuration of Port 2 for this VLAN entry.
1 = Member - Packets with a VID that matches this entry
are allowed on ingress. The port is a member of the
broadcast domain on egress.
0 = Not a Member - Packets with a VID that matches this
entry are filtered on ingress unless the Admit Non Member
bit in the
(SWE_ADMT_N_MEMBER)
not a member of the broadcast domain on egress.
Un-Tag Port 2
When this bit is set, packets received on Port 2 with a VID
that matches this entry will have their tag removed when re-
transmitted by egress ports that are designated as Hybrid
ports via the
(BM_EGRSS_PORT_TYPE).
Member Port 1
See description for Member Port 2.
Un-Tag Port 1
See description for Un-Tag Port 2.
Member Port 0 (Host MAC)
See description for Member Port 2.
Un-Tag Port 0 (Host MAC)
See description for Un-Tag Port 2.
VID
These bits specify the VLAN ID associated with this VLAN
entry.
To disable a VLAN entry, a value of 0 should be used.
Note:
Note:
Switch Engine Admit Non Member Register
A value of 0 is considered a NULL VLAN and
should not normally be used other than to
disable a VLAN entry.
A value of 3FFh is considered reserved by IEEE
802.1Q and should not be used.
Buffer Manager Egress Port Type Register
(SWE_VLAN_CMD)), bits 11:0 of this field specify
(SWE_VLAN_CMD)), the bits form the VLAN
DESCRIPTION
180Ch
DESCRIPTION
is set for this port. The port is
DATASHEET
377
Size:
Switch Engine
Switch Engine
DEFAULT
000h
32 bits
0b
0b
0b
0b
0b
0b
TYPE
R/W
RO
Revision 1.2 (04-08-08)
DEFAULT
0b
-