BCM93212 FEATURES
93212 Cable Modem Termination System (CMTS) Reference Design
•Provides complimentary system to the BCM93345,
BCM93350 and BCM93360 subscriber cable modem
and residential gateway reference design for product
development and testing.
•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.
•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
SUMMARY OF BENEFITS
DOCSIS/EuroDOCSIS 1.1 ADVANCED CABLE MODEM TERMINATION SYSTEM
PRODUCT
Brief
BCM93212
•The BCM93212 is a DOCSIS/EuroDOCSIS-1.0 and 1.1
based cable modem termination system (CMTS)
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
•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
The Broadcom BCM93212 QAMLink®DOCSIS/EuroDOCSIS
Cable Modem Termination System (CMTS) Reference Design
represents the industry’s first complete DOCSIS/EuroDOCSIS-
based 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 receiv e 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-w ord 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
BCM93212 OVERVIEW
5-65 MHz Upstream
BCM3138
Dual TDMA
Receiver
BCM3138
BCM3138
Routing/
Classification
Engine
Ethernet
System
CPU
Memory
PCI Bus
BCM3212
Advanced
CMTS MAC
Downstream
SDRAM
(PHS,
output
queues)
BCM3034
Advanced QAM
Modulator
LPFPA
WAN
44 MHz IF
For more information please contact us at:
Phone: 949-450-8700, FAX: 949-450-8710
Email: info@broadcom.com
Visit our web site at: www.broadcom.com
© 2001 by BROADCOM CORPORATION. All rights reser ved.
93212-PB00-R-11.27.01
Broadcom®, the pulse logo®and QAMLink®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 Par kway, P.O. Box 57013
Ir vine, Califor nia 92619-7013
