MVTX2801A Datasheet

IC型號：
MVTX2801A
PDF描述：
Unmanaged 4 port Gigabit Ethernet switch
文件大?。?/label>
403.97KB
PDF頁數(shù)：
131頁
芯片廠家：
ETC

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MVTX2801AG

4-Port 1000 Mbps Ethernet Distributed Switch

Data Sheet

Features

鈥?/div>

4 Gigabit Ports with GMII and PCS interface

鈥?Gigabit Port can also support 100/10 Mbps MII

interface

DS5748

Issue 1.1

May 2002

Ordering Information

MVTX2801AG 596-pin BGA

-40

C to + 85

WRED mechanism

鈥?User controlled thresholds for WRED

鈥?/div>

High Performance Layer 2 Packet Forwarding

(11.904M packets per second) and Filtering at

Full-Wire Speed

Maximum throughput is 4 Gbps non-blocking

Centralized shared-memory architecture

Consists of two Memory Domains at 133 MHz

鈥?Frame Buffer Domain: one bank of ZBT-SRAM with

1M/2MB total

鈥?Switch Database Domain with 256K/512K SRAM.

鈥?/div>

Classification based on layer 2, 3 markings

鈥?VLAN Priority field in VLAN tagged frame.

鈥?DS/TOS field in IP packet

鈥?The precedence of above two classifications can be

programmable

鈥?/div>

Up to 64K MAC addresses to provide large node

aggregation in wiring closet switches

鈥?/div>

Traffic Classification

鈥?/div>

Classify traffic into 8 transmission priorities per

port

Supports Delay bounded, Strict Priority, and

WFQ

Provides 2 level dropping precedence with

QoS Support

Supports IEEE 802.1p/Q Quality of Service with 8

Priority

Buffer Management: reserve buffers on per class

and per port basis

Port-based Priority: VLAN Priority with Tagged

frame can be overwritten by the priority of PVID

QoS features can be configured on a per port

basis Control

Full Duplex Ethernet IEEE 802.3x Flow Control

Frame Data Buffer A

ZBT-SRAM (1M/2MB)

64bit

FDB Interface

SRAM 256/512K

SW Databasee

MAC Table

32bit

SDB Interface

LED

Engine

Database

VTX2801

VTX2800

Frame

Engine

Scheduler

Management

Module

GMII

/PCS

Port 0

GMII

/PCS

Port 1

GMII

/PCS

Port 2

GMII

/PCS

Port 3

Serial/

Serial /

I2C

Figure 1 - Chip Block Diagram

SEMICMF.019

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