pa clock data clock data pci backbone lpf 44 mhz if 5-42 mhz vga pci interface pentium pc 100mb ethernet bcm3033 qam modulator BCM3210B mac bcm3137 burst demod 1-8 channels full docsis/eurodocsis 1.0 and 1.1 cmts mac including baseline privacy supports 64/256 qam (annex a and b) downstream and qpsk/16 qam upstream at docsis/eurodocsis data rates supports one downstream and up to eight upstream channels simultaneously direct interface to bcm3033 and bcm3034 qam modulators bcm3137 and bcm3138 burst qpsk/qam demodulators dma support for two downstream queues and one upstream queue interfaces to generic i960 cpu or plx9080 for bridging to a pci bus serial control interface master spi compatible jtag test interface 3.3v interface 352-pin bga package BCM3210B features provides full docsis/eurodocsis 1.0 and 1.1 compliant cmts silicon solution for headend line card or hfc interface. reduces overall system cost simplifies system, board and software design enables quality of service (qos) features real-time hardware processing of all media access control (mac) functions for docsis/eurodocsis based cmts, including: master timebase generation downstream sync message insertion mac header hcs and payload crc-32 generation and checking mpeg framing extract upstream and downstream parameters upstream channel parser and concentrator on-the-fly demodulator programming baseline privacy encryption and decryptionwith support for 16 sids and 56-bit des encryption keys. docsis/eurodocsis-based cable modem headend block diagram docsis/e uro docsis cable modem termination system (mac) summary of benefits product brief BCM3210B
key dram buffer dram bcm3033 bcm3137 bcm3137 bcm3137 bcm3137 bcm3137 bcm3137 bcm3137 bcm3137 interface bcm3137 interface bcm3137 interface bcm3137 interface bcm3137 interface bcm3137 interface bcm3137 interface bcm3137 interface rxfifo bcm3033 interface down stream controller bcm3137 timing generation encfifo crc/hcs insertion downstream parser des encryption engine dsfifo crc/hcs verification upstream parser des decryption engine rxfifo rxfifo rxfifo rxfifo rxfifo rxfifo rxfifo channel arbiter map sram dram access usfifo local bus interface dma engine mib registers statistics spi controller brcfifo controller jtag the broadcom BCM3210B is designed to control upstream and downstream communications channels. it is intended for use in conjunction with the physical layer devices bcm3033/bcm3034 (qam modulators) and bcm3137/bcm3138 (burst demodulators)?y providing the headend control mechanisms for both the upstream and downstream traffic. the BCM3210B supports the docsis/eurodocsis 1.0 and 1.1 standards, enabling the deployment of systems that are capable of supporting multiple datatypes (voice, video, data) simultaneously and on a prioritized basis. these extensions to the docsis/eurodocsis specification are supported on the subscriber side in the bcm3350 (single-chip cable modem). the BCM3210B also handles these tasks: intermediate buffering encryption/decryption timing control communications channel access system provisioning support system debug the BCM3210B provides a slave port enabling the external microprocessor to: configure parameters install encryption/decryption keys access status registers in the bcm3033/bcm3034 and bcm3137/bcm3138 the BCM3210B can also be daisy chained with another (slave) BCM3210B to enable a higher ratio of upstream to downstream channels. ordering inf ormation: BCM3210Bktb BCM3210B overview phone: 949-450-8700 fax: 949-450-8710 email: info@broadcom.com web: www.broadcom.com broadcom , the pulse logo , qamlink and connecting everything tm are trademarks of broadcom corporation and/or its subsidiaries in the united states and certain other countries. all other trademarks are the property of their respective owners. broadcom corporation 16215 alton parkway, p.o. box 57013 irvine, california 92619-7013 ? 2002 by broadcom corporation. all rights reserved. 3210b-pb08-r-4.23.02
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