BCM93212
PRODUCT
®
Brief
OF BENEFITS
DOCSIS/EuroDOCSIS 1.1 ADVANCED CABLE MODEM TERMINATION SYSTEM
BCM93212 FEATURES SUMMARY DOCSIS/EuroDOCSIS-1.0 • The BCM93212 is a termination system (CMTS)and 1.1 based cable modem reference design which incorporates:
• 64/256/512/1024 QAM downstream modulation with FEC • QPSK, 16, 32 and 64 QAM burst TDMA demodulation • Digitally generated IF carrier that meets DOCSIS/EuroDOCSIS-1.1 and 1.1 spectral purity requirements without a SAW filter • DOCSIS/EuroDOCSIS programmable downstream transmit IF carrier center frequency and channel bandwidth • Master/Slave MAP, reference clock, timestamp synchronization, and 10/100/1000BASE-T front panel connectors • BCM3212 MAC hardware that simplifies registration, ranging, fragmentation, concatenation, encryption, and payload header suppression • Scheduler support for DOCSIS 1.1 best effort, polled, and unsolicited grant service flows
• Provides complimentary system to the BCM93345,
• Supports DOCSIS/EuroDOCSIS 1.1 fragmentation and concatenation for Quality of Service (QoS). • Provides a highly integrated 6 x 1 CMTS reference design in a compact PCI form factor. Accelerates software development by providing source •
code for core software functionality and low level diagnostics.
• Reduces customers’ internal development expenses. • Leverages years of development work embodied in the Broadcom BCM93210 reference design.
BCM93350 and BCM93360 subscriber cable modem and residential gateway reference design for product development and testing.
•
The BCM93212 basic system parameters include:
• A BCM3212 Compact PCI V2.1 compliant base board with plug in connectors for 64/256/512/1024 QAM modulator and TDMA demodulator daughter cards Support for one QAM downstream channel • • Support for six programmable upstream channels that support all DOCSIS 1.0 / 1.1 and TDMA symbol rates and demodulation types. • 10/100/1000BASE-T network side interface • Seamless upgrade for legacy BCM93210 CMTS platforms using QNX RTOS
• Based on Broadcom’s field-proven QAMLink technology. • Reference design comes complete with:
• Schematics and Gerber files • Bill of Materials (BOM) • Data sheets • Software source code and API
BCM93212 Cable Modem Termination System (CMTS) Reference Design
BCM93212
OVERVIEW
5-65 MHz Upstream
BCM3138
Dual TDMA Receiver
BCM3138 BCM3138
Ethernet
BCM3212 Advanced CMTS MAC
PCI Bus
Routing/ Classification Engine
WAN
System CPU
44 MHz IF BCM3034 Advanced QAM Modulator
PA
LPF
Downstream SDRAM (PHS, output queues)
Memory
The Broadcom BCM93212 QAMLink® DOCSIS/EuroDOCSIS Cable Modem Termination System (CMTS) Reference Design represents the industry’s first complete DOCSIS/EuroDOCSISbased silicon solution with TDMA upstream and advanced PHY downstream functions for the headend cable plant. The BCM93212 CMTS supports the DOCSIS/EuroDOCSIS 1.0 and 1.1 specification enabling QoS for the simultaneous processing of voice, video and data on a prioritized basis. The BCM93212 CMTS includes the BCM3034 Universal Advanced PHY QAMLink® Modulator, the BCM3212 DOCSIS/EuroDOCSIS 1.1 CMTS MAC and the BCM3138 Universal TDMA Burst Demodulator and provides all the necessary functionality required to receive and transmit high rate digital data to and from a cable plant. Functions include: • Hardware-supported messaging (ranging, registration, channel configuration) • Physical layer configurations (upstream baud rates, upstream channel descriptor and MAP variations, and FEC code-word size) • Baseline privacy support • Flexible PHY and MAC parameter settings and performance monitoring
The BCM93212 is complemented at the subscriber end by the BCM93345, BCM93350 and the BCM93360, DOCSIS/EuroDOCSIS-based cable modem and residential gateway silicon solutions. The BCM93360 is based on the BCM3360 single-chip residential gateway, which integrates all the major functions of a cable modem into a single device. Together, the BCM93212 and the BCM93360 provide vendors with a seamless end-to-end silicon solution for development and testing of an DOCSIS/EuroDOCSIS-based cable modem and cable modem termination system with TDMA upstream and advanced PHY downstream functions. Ordering Information: BCM93212 CL–DOCSIS CMTS BCM93212-E CL–EuroDOCSIS CMTS
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®
BROADCOM CORPORATION 16215 Alton Parkway, P.O. Box 57013 Irvine, California 92619-7013
© 2002 by BROADCOM CORPORATION. All rights reserved. 93212-PB02-R 11.22.02
Phone: 949-450-8700 FAX: 949-450-8710 Email: info@broadcom.com Web: www.broadcom.com
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