DS33X41+ Maxim Integrated Products, DS33X41+ Datasheet - Page 161
DS33X41+
Manufacturer Part Number
DS33X41+
Description
IC MAPPING ETHERNET 256CSBGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS33X11.pdf
(375 pages)
Specifications of DS33X41+
Applications
Data Transport
Interface
Parallel/Serial
Voltage - Supply
1.8V, 2.5V, 3.3V
Package / Case
256-CSBGA
Mounting Type
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Register Name:
Register Description:
Register Address:
084h:
Default
Whenever a write is performed to this configuration register address the data is stored in the VLAN Table at the
address specified by the SU.VTAA register (i.e. the VTAA value must be provided in advance of the VTWD data).
VLAN Forwarding, Extracting (Trapping), or Discarding. Each address (SU.VTAA) in the VLAN table
corresponds to a specific VLAN ID (VID) value from 0 to 4095, and the bit settings at each address relate to
actions taken when a frame containing the corresponding VLAN ID value is detected. These values are used to
translate VLAN tag information from each received frame into forwarding, trapping (frame extraction), or discarding
decisions. The user may configure any or all of the 4096 VLAN IDs values in the VLAN table. The data written to
this register is stored in the VLAN Table at the specified VLAN Table Address.
Bit 5: WAN-VLAN Extract Forwarding (WAN-VLAN Trap) (WVEFW)
Bit 4: WAN-VLAN Queue Forwarding (WVQFW; Only valid in Forwarding Mode 5)
Bit 3: LAN-VLAN Discard (LVDW)
Bit 2: LAN-VLAN Extract Forwarding (LAN-VLAN Trap) (LVEFW)
Bits 0-1: LAN-VLAN Queue Forwarding (LVQFW [2:1])
NOTE:
Rev: 063008
085h:
Default
LAN Extract forwarding takes precedence over LAN Queue forwarding.
LAN Discard takes precedence over LAN Extract forwarding (trapping).
WAN Extract forwarding (trapping) takes precedence over WAN Queue forwarding.
________________________________________________ DS33X162/X161/X82/X81/X42/X41/X11/W41/W11
0 = Do nothing.
1 = Trap frames received from the WAN with this VID and place them in the WAN Extract Queue.
0 = Forward frames received from the WAN with this VID value to Ethernet Port 1
1 = Forward frames received from the WAN with this VID value to Ethernet Port 2
0 = Do nothing.
1 = Discard frames received from the LAN with this VID
0 = Do not forward this frame to the LAN Extract Queue
1 = Forward this frame to the LAN Extract Queue
00 = Forward frames with a VID value equal to this table address to LAN Queue Group 1
01 = Forward frames with a VID value equal to this table address to LAN Queue Group 2
10 = Forward frames with a VID value equal to this table address to LAN Queue Group 3
11 = Forward frames with a VID value equal to this table address to LAN Queue Group 4
Bit 15
Bit 7
0
0
-
-
Bit 14
Bit 6
0
0
-
-
SU.VTWD
VLAN Table Write Data
084h
WVEFW
Bit 13
Bit 5
0
0
-
WVQFW
Bit 12
Bit 4
0
0
-
Bit 11
LVDW
Bit 3
0
0
-
LVEFW
Bit 10
Bit 2
0
0
-
LVQFW2
Bit 9
Bit 1
0
0
-
LVQFW1
161 of 375
Bit 8
Bit 0
0
0
-
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