DS33W41+ Maxim Integrated Products, DS33W41+ Datasheet - Page 142

• Manufacturer Part Number: DS33W41+
• Description: IC MAPPING ETHERNET 256CSBGA
• Manufacturer: Maxim Integrated Products

Specifications of DS33W41+

• 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

Register Name:
Register Description:
Register Address:
002h:
Default
Bit 13: LAN Port 2 Speed Selection (P2SPD)
0 = 10Mbps operation
1 = 100Mbps
Bit 11: LAN Port 1 Speed Selection (P1SPD)
0 = 10Mbps operation
1 = 100Mbps operation
This bit setting is only applicable to MII and RMII modes.
Bits 0-2: Forwarding Mode Control (FMC[2:0])
000 = Reserved
In all forwarding modes, VCAT/LCAS can be used to aggregate multiple physical serial ports for each WAN
Group’s data stream, except on devices that do not support VCAT/LCAS.
Rev: 063008
003h:
Default
________________________________________________ DS33X162/X161/X82/X81/X42/X41/X11/W41/W11
001 = Forwarding mode 1. Single Ethernet Port with Priority Forwarding. In this mode, Ethernet frames
010 = Forwarding mode 2. Per-Ethernet-Port Forwarding with Priority Scheduling. In this mode, frames
011 = Forwarding mode 3. Single Ethernet Port with VLAN Forwarding and Priority Scheduling. In this
100 = Forwarding mode 4. Per-Ethernet-Port Forwarding, with VLAN Forwarding and Priority
101 = Forwarding mode 5. Full VLAN Forwarding in both the LAN-to-WAN and WAN-to-LAN
110 = Reserved.
111 = Reserved.
Bit 15
Bit 7
are segregated into up to four priority levels and forwarded to separate WAN data streams.
from each Ethernet port are forwarded to their own group of four priority queues, generating two
separate WAN data streams with priority scheduled traffic.
mode, Ethernet frames are forwarded by VLAN tag (VID) into up to four groups of four priority
queues (WAN Groups) each. Each WAN Group forms a separate WAN data stream with priority
scheduled traffic.
Scheduling within each VLAN group. In this mode, Ethernet frames from each Ethernet port are
forwarded separately, by VLAN tag, into two sets of four priority queues (WAN Groups) each. The
two WAN Groups form separate WAN data streams with priority scheduled traffic.
directions. In this mode, Ethernet frames from both ports can be forwarded by VLAN tag to two
shared WAN groups. Within each WAN group, there are two sets of four priority queues. The two
sets of priority queues are serviced with a round-robin algorithm. Frames received from the WAN
side can be forwarded by VLAN tag to either Ethernet port. The LAN-to-WAN and WAN-to-LAN
mappings are independent and can be configured separately.
0
0
-
-
Bit 14
Bit 6
0
0
-
-
GL.CR1
Global Control Register 1
002h
P2SPD
Bit 13
Bit 5
0
0
-
Bit 12
Bit 4
0
0
-
-
P1SPD
Bit 11
Bit 3
0
0
-
FMC-2
Bit 10
Bit 2
0
0
-
FMC-1
Bit 9
Bit 1
0
0
-
142 of 375
FMC-0
Bit 8
Bit 0
0
0
-