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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.
Features
Integrated Single-Chip 10/100/1000 Mbps
Ethernet Switch
24 10/100 Mbps Autosensing, Fast Ethernet
Ports with RMII or Serial Interface (7WS)
2 Gigabit Ports with GMII, PCS, 10/100 and
stacking (2 G per port) interface options per port
Serial interface for configuration
Supports two Frame Buffer Memory domains with
SRAM at 100 MHz
Supports memory size 2 MB, or 4 MB
For 24+2, two SRAM domains (2 MB or 4 MB) are
required.
For 24+2 stacking (2 G per stacking port), two ZBT
domains (2 MB or 4 MB) are required.
Applies centralized shared memory architecture
Up to 64K MAC addresses
Maximum throughput is 6.4 Gbps non-blocking
High performance packet forwarding (19.047 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. The
Gigabit trunking group has one more option,
based on source port.
Port Mirroring to a dedicated port or port 23
Built-in reset logic triggered by system
malfunction
I
2
C EEPROM for configuration
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
February 2004
Ordering Information
MVTX2603AG
553 Pin HSBGA
-40°C to +85°C
MVTX2603
Unmanaged 24-Port 10/100 Mb + 2-Port 1 Gb
Ethernet Switch
Data Sheet
Figure 1 - MVTX2603 System Block Diagram
FDB Interface
Frame Data Buffer A
SRAM (1 M / 2 M)
LED
Search
Engine
MCT
Link
Frame Engine
FCB
Parallel/
Serial
Management
Module
24 x 10 /100
RMII
Ports 0 - 23
V
Frame Data Buffer B
SRAM (1 M / 2 M)
V
GMII/
Port
24
GMII/
PCS
25