MVTX2601 Datasheet, PDF (1/91 Pages) Zarlink Semiconductor Inc – Unmanaged 24-Port 10/100 Mbps Ethernet Switch

Features
• Ιntegrated Single-Chip 10/100 Mbps Ethernet
Switch
• 24 10/100 Mbps Autosensing, Fast Ethernet
Ports with RMII or Serial Interface (7WS). Each
port can independently use one of the two
interfaces
• Serial interface
• Supports one Frame Buffer Memory domain with
SRAM at 100 MHz
• Supports SRAM domain memory size 1 MB or
2 MB
• Applies centralized shared memory architecture
• Up to 64 K MAC addresses
• Maximum throughput is 2.4 Gbps non-blocking
• High performance packet forwarding (7.143 M
packets per second) at full wire speed
• Full Duplex Ethernet IEEE 802.3x Flow Control
• Backpressure flow control for Half Duplex ports
• Supports Ethernet multicasting and broadcasting
and flooding control
• Supports per-system option to enable flow
control for best effort frames even on QoS-
enabled ports
• Load sharing among trunked ports can be based
on source MAC and/or destination MAC
MVTX2601
Unmanaged 24-Port 10/100 Mbps
Ethernet Switch
Data Sheet
February 2004
Ordering Information
MVTX2601AG 553 Pin HSBGA
-40°C to 85°C
• Port Mirroring to a dedicated mirroring port or
port 23 in unmanaged mode
• Full set of LED signals provided by a serial
interface
• 2 port trunking groups with up to 4 10/100 ports
per group
• Built-In Self Test for internal and external SRAM
• Traffic Classification
• 4 transmission priorities for Fast Ethernet ports with
2 dropping levels
• Classification based on:
-Port based priority
-VLAN Priority field in VLAN tagged frame
- DS/TOS field in IP packet
- UDP/TCP logical ports: 8 hard-wired and 8
programmable ports, including one pro-
grammable range
• The precedence of the above classifications is
programmable
Frame Data Buffer A
SRAM (1 M / 2 M)
FDB Interface
FCB
Frame Engine
Search
Engine
LED
MCT
Link
24 x 10 / 100
RMII
Ports 0 - 23
Management
Module
Parallel /
Serial
Figure 1 - MVTX260 1 System Block Diagram
1
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Copyright 2003-2004, Zarlink Semiconductor Inc. All Rights Reserved.