Single-chip DOCSIS cable modem with dual software network processing e
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single-chip DOCSIS cable modem solution CX24951
Single-chip DOCSIS cable modem with dual software network processing engines
marketsegment.
features 500MIPSofprocessingpower EmbeddedIEEE802.3MACwithMII ableHomeandPacketCablecompliant ighdensity,17mmx17mmBGApackage
Dual programmable network processors memorysizeto128Kbytes. maximumflexibility. networkingapplications. multi-portEthernetSwitches.
processingalgorithms. Highly integrated set-topboxes.
Indicators GPIO
Cable
Tuner
Control
10/100 Ethernet HPNA
RJ-45
RJ-11
CX24951
SDRAM SDRAM Interface HomePlug Powerline
Host Interface
Type Socket RJ-11 RJ-11
Voice Power Supply Flash 802.11a/b MAC/PHY
Antenna
brb232
Increased performance innoise-filledenvironments.
Flexible platform ofcertifiedcode. andequipmentobsolescence. Complete hardware software solution
Interrupt Controllers
Applications Network Processor
Peripheral
Memory
Cable Downstream Cable Network Processor
Cable Upstream S-CDMA A-TDMA
Host Interface
brb242
CX24951Single-Chip CableModemICBlockDiagram
CX24951 features Cable downstream 10-bitA/D }DirectIFsamplingat44and36MHz }Programmableequalization }AnnexA,BandCFEC Cable upstream }11-bitD/A }A-TDMA }S-CDMAwithTurboTrelliscoding }Programmablepre-equalization interrupt controller }20asynchronouschannels Peripheral }32GPIO }JTAGboundaryscan }UART Cable network processor }SoftwareProgrammable -DOCSIS2.0/1.1/1.0compliant -DVBcompliant -Fixedwirelesscompliant -Proprietarystandards }TwoPHSengines }Internal64KBdatamemory }Internal128KBInstructionmemory }Three56-bitDES/CRCengines Application network processor }ARM940Tmicrocontroller }Upto225MHzoperation }4KBinstructionand4KBdatacache }EmbeddedICEanddebugextensions }IEEE802.3MAClayer }Networkingtechnologies -10/100Ethernet -NXPHPNA2.0
Host interface -IEEE802.11aorIEEE802.11b }Integrated12Mbtransceiver }Communicationsperipheraldevice Memory }Internal8Kx32SRAM }ExternalSDRAMInterface -16-bitinterface Phase-locked loops }TDMclockandframesyncgenerator }Transmitclockgenerator }InternalUSBclock Miscellaneous functions }Watchdogtimer }Fouradditionaltimers }Interruptcontroller Package power }228PBGA(17mmx17mm) }AllI/Oat3.3V }Powersupply:3.3Vand1.3V }<550mW(typical) Reference designs }DOCSIS2.0/1.1/1.0 }DOCSIS&EuroDOCSIS2.0/1.1/1.0 }PCI Product applications (DOCSIS/EuroDOCSIS 2.0/1.1/1.0, DVB, Proprietary) }CableModemwithHomeNetworking }PCMCIACableModem }CPEControlledCableModem(CCCM)
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2008 B.V. rights reserved. Reproduction whole part prohibited without prior written consent copyright owner. information presented this document does form part quotation contract, believed accurate reliable changed without notice. liability will accepted publisher consequence use. Publication thereof does convey imply license under patent- other industrial intellectual property rights. Date release: June 2008 Document order number: 9397 16583 Printed Netherlands
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