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
• Fully compatible with legacy ADSL/2/2plus applications enabling the world’s
most interoperable ADSL/2/2plus fallback capabilities
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.
Distinguishing Features
•
Flexible VDSL2 DSP core architecture, delivering
profiles 8x, 12x, 17a and 30a with long reach
• 2 pair VDSL2 bonding
• ADSL/ADSL2/ADSL2plus fallback capability
• Two VoIP channels running in internal voice DSP
• 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
• 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
PCI
USB 2.0
VOIP
DSP
GPIO
HSSD
GMAC
PCM
SPI
DDR
Controller
ARM
CORE
xDSL DSP
AFE Interface
MAC
EPB
Interface
Part Number
CX96629, CX96429, CX96420
VPN
JTAG
CX96xxx Block Diagram
Description
VDSL2 IAD Chipsets
CONEXANT [ CONEXANT SYSTEMS, INC ]
