CONEXANT CX96420

Broadband Access – Client Side
DSL Solutions
Integrated VDSL2 CPE Gateway Chipsets
CX96xxx - VDSL2 Chipset Family
Conexant’s portfolio includes a comprehensive suite of semiconductor
solutions for broadband communications and the digital home.
The CX96xxx chipset family enables next-generation, wireless VDSL2
gateways, VDSL2 VoIP Integrated Access Devices (IADs), and VDSL2 bridges.
This chipset includes a highly integrated Analog Front End (AFE) and a single
chip ARM™ based Network Processor (NP), a flexible xDSL DSP core and a
field-proven Voice DSP engine.
Key features include:
• Integrated high performance ARM™ network processor core with routing
and switching packet accelerator engine that enables up to one gigabit
data throughput
• Dedicated Voice Digital Signal Processor (DSP) which frees up processing
power for other applications while supporting two complete VoIP channels
• Flexible xDSL DSP core architecture available in 30MHz, 17MHz bandwidth
and 2-pair bonded configurations enabling cost-optimized products for
Fiber-To-The-Building (FTTB), Fiber-To-The-Node (FTTN), and CO
deployments, respectively
Distinguishing Features
• Fully compatible with legacy ADSL/2/2plus applications enabling the world’s
most interoperable ADSL/2/2plus fallback capabilities
• 2 pair VDSL2 bonding
CX96xxx devices include a wide variety of interfaces that support
complementary home networking technologies to provide a complete system
solution for xDSL gateways. The CX96xxx SoCs seamlessly integrate with
Conexant’s SmartDAA and Subscriber Line Interface Cards (SLIC)/codec
chipsets, providing manufacturers a single-source solution for low-cost turnkey
triple play applications. Interfaces such as PCI and GMII are also supported to
enable emerging home distribution technologies such as Multimedia over Coax
Alliance (MoCA®), HomePNA™ specification 3.0 and HomePlug® A/V.
• Two VoIP channels running in internal voice DSP
MAC
USB 2.0
HSSD
GPIO
GMAC
ARM
CORE
xDSL DSP
PCM
SPI
DDR
Controller
• ADSL/ADSL2/ADSL2plus fallback capability
• Supports up to 4 VoIP narrowband channels or 2 VoIP wideband channels
• Enhanced high performance ARM network
processor core
• 16/32-bit DDR-1 interface
• 32-bit x 33MHz Peripheral Component
Interconnect (PCI)
• Gigabit Media Independent Interface (GMII) with
Ten-Bit Interface (TBI) and Media Independent
Interface (MII) modes
• MII in master or slave mode
• ULPI interface for USB 2.0 host/device applications
• Serial and parallel flash support
VOIP
DSP
AFE Interface
PCI
• Flexible VDSL2 DSP core architecture, delivering
profiles 8x, 12x, 17a and 30a with long reach
EPB
Interface
• Up to 2GB NAND flash support
• HW engine handling all layer 2 switching
and layer 3 routing including Network Address
Translation (NAT)
• HW VPN engine supporting DES, 3DES, AES,
SHA-1, SHA-256 and MD5 operations
Part Number CX96629, CX96429, CX96420
VPN
CX96xxx Block Diagram
JTAG
Description
VDSL2 IAD Chipsets
Broadband Access – Client Side
DSL Solutions
Chipset
Profile 30a
Profile 17a
CX96629
Profile 12x
Profile 8x
Voice
Gateway
Bonding
X
X
X
X
X
X
X
CX96429
X
X
X
X
CX96420
X
X
X
X
X
Product Features
• Support for VDSL2 (G.993.2) with ADSL/ADSL2/ADSL2plus fallback
(G.992.1, G.992.2, T1.413, G992.3, G.992.5)
• Integrated, field-proven xDSL DSP core architecture delivering profiles
8x, 12x, 17a, 30, long reach and VDLS2 pair bonding
• 16/32-bit DDR-1 interface
• Integrated 10/100/1000 Ethernet gigabit MAC with GMII, MII and
TBI interfaces
• Integrated 10/100 Ethernet MAC with MII interface
• Integrated PCI interface with 32-bit x 33 MHz
• USB 2.0 interface via ULPI with host and device mode capability
• External Parallel Bus (EPB) provides support for NAND flash devices
along with host interface mode for external host control
• Support for parallel flash and serial flash
• Integrated Voice DSP engine supports up to two VoIP channels with HW
echo cancellation
• PCM interface to external Conexant’s single- or dual-channel industry standard SLIC/Codec integrated devices (CX20560 & CX20559) or
industry standard SLIC/codec devices
• Interface to lifeline backup using Conexant’s cost effective SmartDAA
FXO technology
• Optimized power management with support for dying gasp
• Support for DSLHome™ including TR-064, TR-068, TR-069, TR-098, TR-104,
TR-106, TR-110, TR-111, TR-124, TR-133
• HW VPN Engine supporting DES, 3DES, AES, SHA-1, SHA-256 and MD5 operations
• Memory and feature optimized binary and source software releases
for targeted deployments
• Stateful Packet Inspection (SPI) firewall and Network Address Translation
(NAT) security solution
• ATM SAR engine supporting Unspecified Bit Rate (UBR), Constant Bit
Rate (CBR) and other service classes
• Common customer development environment and tools across ADSL
to VDSL2 products
Applications
•
•
•
•
•
VDSL2 17 MHz or 30 MHz bridges
VDSL2 17MHz or 30 MHz gateways
Wireless VDSL2 17 MHz or 30 MHz gateways
VDSL2 17 MHz or 30 MHz voice gateways
VDSL2 12 MHz pair bonded voice gateway
Conexant Product Portfolio
The company’s broad portfolio of semiconductor products also includes client-side DSL, cable, and dial-up modem solutions; fiber optic system-onchips; broadcast video encoders and decoders; and digital set-top box components and systems solutions. Additional products include a complete line
of asymmetric and symmetric DSL central office solutions, which are used by service providers worldwide to deliver broadband data, voice, and video
over copper telephone lines.
© 2007, Conexant Systems, Inc. All Rights Reserved. Conexant and the Conexant
logo are registered 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.
07-2707
www.conexant.com
General Information:
U.S. and Canada: (888) 855-4562
International: (732) 345-7500
Headquarters
4000 MacArthur Blvd.
Newport Beach, CA 92660
Doc# PBR-201091