Home Networking/Routers
Network Processors
Network Processor with
lntegrated Ethernet Switch
CX84200
Single-Chip Solution with Integrated
Five-Port Ethernet Switch
Conexant’s broadband communications portfolio includes a comprehensive
suite of semiconductor solutions that enable the digital home and
information network. The Conexant CX84200 Network Processor supports
complete networking system solutions for a wide variety of mainstream
applications in the residential and SOHO environments. Based on a 75 MHz
ARM7TDMI, this Network Processor is a single-chip solution with an
integrated switch that supports five 10/100 Mbps Ethernet ports.
In a Broadband Gateway application, the CX84200 Network Processor can
provide Internet access sharing capability for multiple PCs, while supporting
Ethernet, HomePNA (Phoneline), HomePlug (Powerline), IEEE 802.11 and other
LAN-side networking platforms. For WAN access, the unit supports Ethernet
connectivity interoperable with any broadband modem. It is the ideal platform
for a configurable broadband gateway design that needs to accommodate
many diverse WAN/LAN topologies.
The device complies with IEEE 802.3 specification and includes five
embedded DSP-based 10Base-T/100Base-TX transceivers. An auto negotiation
function determines the selection of either the 10Base-T or 100Base-TX mode.
Typical applications would be a Wireless Home Gateway including an Ethernet
WAN port to connect to a Broadband modem, four Ethernet LAN ports, and an
802.11b access connecting to any Wi-Fi compatible device.
Laptop
Laptop
Computer Computer
•••
Personal
Computer
Personal
Computer
Personal
Computer
Personal
Computer
CX84200 Distinguishing Features
• Single-chip, high-performance
processor with five-port integrated
Ethernet switch
• Can be easily integrated with
various IEEE 802.11b solutions
• Supports HomePlug (Powerline)
and HomePNA (Phoneline) through
an M II interface
Wireless
Clients
802.11a/b/g
Ethernet (RJ45)
Wireless Home Gateway
using the CX84200
Ethernet (RJ45)
Broadband Modem
Broadband Connection
Internet
Network Server
Network Server
Part Number
CX84200
Description
Network Processor with
Integrated Ethernet Switch
Wireless Home Gateway
CONEXANT [ CONEXANT SYSTEMS, INC ]
