|
MVTX2803 Datasheet, PDF (1/127 Pages) Zarlink Semiconductor Inc – Unmanaged 8-Port 1000 Mbps Ethernet Switch | |||
|
MVTX2803
Unmanaged 8-Port 1000 Mbps
Ethernet Switch
Data Sheet
Features
⢠Eight Gigabit Ports with GMII and PCS interface
- Gigabit Port can also support 100/10 Mbps MII
interface
⢠High Performance Layer 2 Packet Forwarding
(23.808M 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
⢠Up to 64K MAC addresses to provide large node
aggregation in wiring closet switches
October 2003
Ordering Information
MVTX2803AG 596 Pin HSBGA
-40°C to +85°C
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
- User controlled thresholds for WRED
⢠Classification based on layer 2, 3 markings
- VLAN Priority field in VLAN tagged frame
- DS/TOS field in IP packet
⢠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)
MVTX2803
64-Bit
FDB Interface
64-Bit
Frame
Engine
SRAM 256/512K
SW Database
MAC Table
32-Bit
SDB Interface
LED
Search
Engine
Schedule
NM
Database
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
Management
Module
Serial /
I2C
Figure 1 - MVTX2803AG 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.
|
▷ |