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:
•ꢀ IntegratedꢀhighꢀperformanceꢀARM™ꢀnetworkꢀprocessorꢀcoreꢀwithꢀroutingꢀ
and switching packet accelerator engine that enables up to one gigabit
data throughput
•ꢀ DedicatedꢀVoiceꢀDigitalꢀSignalꢀProcessorꢀ(DSP)ꢀwhichꢀfreesꢀupꢀprocessingꢀ
power for other applications while supporting two complete VoIP channels
•ꢀ FlexibleꢀxDSLꢀDSPꢀcoreꢀarchitectureꢀavailableꢀinꢀ30MHz,ꢀ17MHzꢀbandwidthꢀ
andꢀ2-pairꢀbondedꢀconfigurationsꢀenablingꢀcost-optimizedꢀproductsꢀforꢀ
Fiber-To-The-Building (FTTB), Fiber-To-The-Node (FTTN), and CO
deployments, respectively
Distinguishing Features
•
Flexible VDSL2 DSP core architecture, delivering
profiles 8x, 12x, 17a and 30a with long reach
•ꢀ FullyꢀcompatibleꢀwithꢀlegacyꢀADSL/2/2plusꢀapplicationsꢀenablingꢀtheꢀworld’sꢀ
mostꢀinteroperableꢀADSL/2/2plusꢀfallbackꢀcapabilities
•
•
•
•
2 pair VDSL2 bonding
ADSL/ADSL2/ADSL2plus fallback capability
Two VoIP channels running in internal voice DSP
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’sꢀSmartDAAꢀandꢀSubscriberꢀLineꢀInterfaceꢀCardsꢀ(SLIC)/codecꢀ
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
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)
®
®
Alliance (MoCA ),ꢀHomePNA™ꢀspecificationꢀ3.0ꢀandꢀHomePlug ꢀA/V.
•
Gigabit Media Independent Interface (GMII) with
Ten-Bit Interface (TBI) and Media Independent
Interface (MII) modes
•
•
•
•
•
MII in master or slave mode
PCI
USB 2.0
HSSD
GPIO
ULPI interface for USB 2.0 host/device applications
Serial and parallel flash support
VOIP
DSP
MAC
Up to 2GB NAND flash support
HW engine handling all layer 2 switching
and layer 3 routing including Network Address
Translation (NAT)
ARM
CORE
xDSL DSP
GMAC
•
HW VPN engine supporting DES, 3DES, AES,
SHA-1, SHA-256 and MD5 operations
PCM
SPI
Part Number CX96629,ꢀCX96429,ꢀCX96420ꢀ
Description VDSL2 IAD Chipsets
EPB
Interface
DDR
Controller
JTAG
VPN
CX96xxx Block Diagram