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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). Each
port can independently use one of the two
interfaces
2 Gigabit Ports with GMII, PCS, 10/100 and
stacking (2 G per port) interface options per port
Stacking port supports hot swap in managed
configuration
Supports 8/16-bit CPU interface in managed
mode
Serial interface in unmanaged mode
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 64 K MAC addresses
Maximum throughput is 6.4 Gbps non-blocking
High performance packet forwarding (19.047 M
packets per second) at full wire speed
Provides port based and ID tagged VLAN
support (IEEE 802.1Q), up to 255 VLANs
Supports IP Multicast with IGMP snooping
Supports spanning tree with CPU, on per port or
per VLAN basis
Packet Filtering and Port Security
Static address filtering for source and/or destination
MAC
Static MAC address not subject to aging
Secure mode freezes MAC address learning
Each port may independently use this mode
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
February 2004
Ordering Information
MVTX2604AG
553 Pin HSBGA
-40°C to 85°C
Figure 1 - MVTX2604 System Block Diagram
FDB Interface
Frame Data Buffer A
SRAM (1 M / 2 M)
LED
Search
Engine
MCT
Link
Frame Engine
FCB
16-bit
Parallel /
Serial
Management
Module
24 x 10 / 100
RMII
Ports 0 - 23
V
Frame Data Buffer B
SRAM (1 M / 2 M)
V
GMII/
PCS
Port
24
GMII/
PCS
Port
25
MVTX2604
Managed 24-Port 10/100 Mb + 2 Port 1 Gb
Ethernet Switch
Data Sheet