鈥?/div>
螜ntegrated
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
VLAN 1 MCT
Ordering Information
MVTX2601AG
553 Pin HSBGA
-40擄C to 85擄C
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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
鈥?4 transmission priorities for Fast Ethernet ports with
2 dropping levels
鈥?Classification based on:
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
-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
鈥?The precedence of the above classifications is
programmable
鈥?/div>
Frame Data Buffer A
SRAM (1 M / 2 M)
FDB Interface
LED
FCB
Frame Engine
Search
Engine
MCT
Link
24 x 10 / 100
RMII
Ports 0 - 23
Management
Module
Parallel /
Serial
Figure 1 - MVTX260 1 System Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2003-2004, Zarlink Semiconductor Inc. All Rights Reserved.
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