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CX84200 Datasheet(PDF) 2 Page - Synaptics Incorporated.

Part # CX84200
Description  Network Processor with lntegrated Ethernet Switch
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Manufacturer  CONEXANT [Synaptics Incorporated.]
Direct Link  https://www.synaptics.com/
Logo CONEXANT - Synaptics Incorporated.

CX84200 Datasheet(HTML) 2 Page - Synaptics Incorporated.

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© 2002, Conexant Systems, Inc. All Rights Reserved. Conexant and the
Conexant logo are trademarks of Conexant Systems, Inc. All other trademarks
are owned by their respective owners. Although Conexant strives for accuracy
in all its publications, this material may contain errors or omissions and is
subject to change without notice. THIS MATERIAL IS PROVIDED AS IS AND WITHOUT
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NON-INFRINGEMENT.
Conexant shall not be liable for any
special, indirect, incidental or consequential damages as a result of its use.
02-0566
Home Networking/Routers
Network Processors
CX84200 Features
• 5 Ethernet ports, 1 MII
• Embedded RISC CPU, 75MHZ ARM7TDMI
• Embedded switch engine
 - Store-and-forward operation
 - Non-blocking, full line speed capability
 - Full-duplex (IEEE802.3x) and half-duplex flow control
(Back pressure)
 - Two priorities CoS, set by port, VLAN tag, TCPIP TOS,
and customized type
 - 6 port grouping VLAN (overlappable)
 - MIB counters
 - Sharing dynamic data buffer management,
embedded SSRAM
 - MAC look-up table read/write-able
 - MAC address level security
 - Bandwidth control
 - Hashing scheme: direct-map or XOR
• Embedded 10/100BaseT/TX PHY
 - DSP based design
 - 10BASE-T/100BASE-TX IEEE 802.3u Compliant
 - Digital Decision Feedback Equalizer
 - Integrated Baseline Wander Correction
 - 3 LEDs provided per port
• Flash interface (512Kx8, 512Kx16 up to 1Mx16)
• SDRAM interface (1Mx16x2 up to 4Mx16x2)
• 2 UART interface, one for the modem interface
• GPIO pins
• LAN / WAN bandwidth prioritized
• Single 25MHz crystal input for network
• 2.5/3.3V, 0.25u CMOS process, 208-pin PQFP
www.conexant.com
General Information:
U.S. and Canada: (800) 854-8099
International: (949) 483-6996
Headquarters – Newport Beach
4311 Jamboree Rd, P.O. Box C
Newport Beach, CA 92660-3095
Order# 102089A
CX84200 Home Network Processor block diagram
Internal Memory Bus
SW-ARM
DMA
SDRAM
Controller
SRAM
Controller
Port
DMA
Tx/Rx
MAC
Port 0
DMA
Tx/Rx
MAC
10/100
PHY
Port 1
DMA
Tx/Rx
MAC
10/100
PHY
Port 2
DMA
Tx/Rx
MAC
10/100
PHY
Port 3
DMA
Tx/Rx
MAC
10/100
PHY
AP Bus
AH Bus
Bridge
Configuration
MIB
Counters
UART0
I/F
UART1
I/F
ARM7TDMI
32-Bit RISC Processor
Embedded Software
Data Buffer/Address-
Table
16K x 64
Memory Control/ BIST
Embedded
Software
Link Table
Embedded MC
Table
Link Control/ BIST
CX84200 Home Network Processor
Port 4
DMA
Tx/Rx
MAC
10/100
PHY


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