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MVTX2804 Datasheet

  • MVTX2804

  • 8-Port 1000 Mbps Ethernet Distributed Switch

  • 2230.44KB

  • 174頁

  • ZARLINK   ZARLINK

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MVTX2804
8-Port 1000 Mbps Ethernet
Distributed Switch
Data Sheet
Features
鈥?/div>
8 Gigabit Ports with GMII and PCS interface
-
-
-
Gigabit Port can also support 100/10 Mbps MII
interface
Provide Hot plug support for GMII/PCS module
2 Gigabit ports can be aggregated into 2Gbps
Stacking port working with VTX2600 in stacking
mode
Ordering Information
MVTX2804AG
596 Pin HSBGA
October 2003
-40擄C to +85擄C
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Support IP Multicast with IGMP snooping up to
64K groups.
Traffic Classification
Classify traffic into 8 transmission priorities per
port
Supports Delay Bounded, Strict Priority, and WFQ
Provides 2 level dropping precedence with WRED
mechanism
-
鈥?/div>
-
-
鈥?/div>
User controlled thresholds for WRED
VLAN Priority field in VLAN tagged frame
DS/TOS field in IP packet
Classification based on layer 2, 3 markings
鈥?/div>
High Performance Layer 2 Packet Forwarding
(11.904M packets per second) and Filtering at
Full-Wire Speed
Maximum throughput is 8 Gbps non-blocking
Centralized shared-memory architecture
Consists of two Memory Domains at 133 MHz
-
-
Frame Buffer Domain: Two banks of ZBT-SRAM
with 2M/4MB total
Switch Database Domain with 256K/512K
SRAM
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Up to 64K MAC addresses to provide large node
aggregation in wiring closet switches
Provides Port based and ID Tagged VLAN
(IEEE802.1Q) up to 4K VLAN
The precedence of above two classifications can
be programmable
Frame Data Buffer A
ZBT-SRAM (1M/2MB)
Frame Data Buffer B
ZBT-SRAM (1M/2MB)
SRAM 256/512K
SW Database
MAC Table
32bit
SDB Interface
LED
VTX2804
64bit
FDB Interface
64bit
Frame
Engine
Scheduler
NM
Database
Search
Engine
Management
Module
GMII
/PCS
Port 0
GMII
/PCS
Port 1
GMII
/PCS
Port 2
GMII
/PCS
Port 3
GMII
/PCS
Port 4
GMII
/PCS
Port 5
GMII
/PCS
Port 6
GMII
/PCS
Port 7
16/8bit-
Bus/
Serial
CPU
Figure 1 - MVTX2804AG Functional Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved.

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