Datasheet > BCM3212

BCM3212

更新时间： 2024-11-28 08:50:03

品牌	Logo	应用领域
博通 - BOARDCOM		/
页数	文件大小	规格书
2页	125K
描述
DOCSIS-TM 1.1 ADVANCED CMTS MAC

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中文翻译

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技术参数
数据手册

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BCM3212 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	BGA	包装说明：	BGA,
针数：	841	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.92
JESD-30 代码：	X-PBGA-B841	功能数量：	1
端子数量：	841	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	BGA	封装形状：	UNSPECIFIED
封装形式：	GRID ARRAY	认证状态：	Not Qualified
表面贴装：	YES	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	INDUSTRIAL	端子形式：	BALL
端子位置：	BOTTOM	Base Number Matches：	1

BCM3212 数据手册

BCM3212

DOCSIS^TM1.1 ADVANCED CMTS MAC

S U M M A R Y O F B E N E F I T S

F E A T U R E S

Performs DOCSIS^TM1.1 MAC layer functions, including:

Hardware support for MAC-layer per-packet functions

including fragmentation, concatenation, and payload header

suppression offloads system CPU, giving higher overall system

performance.

•

Fragment reassembly

Deconcatenation

Payload header suppression and expansion

56-bit DES encryption and decryption

Generation and checking of HCS and CRC

MPEG encapsulation of downstream traffic

Timestamp and SYNC message generation

Extraction of bandwidth requests and DOCSIS MAC

management messages allows software to access these

messages without examining data packets.

•

Class-based queuing allows traffic prioritization:

Supports one downstream and up to six upstream channels

•

High, medium, and low priority downstream queues.

High priority, low priority, request, and MAC management

upstream queues

simultaneously

•

Many other downstream-to-upstream ratios can be achieved by

connecting multiple BCM3212 devices via the seamless MAP

master/slave interface

Support for carrier class redundancy via timestamp

synchronization across multiple BCM3212 devices.

•

Processes up to 400,000 packets per second in the aggregate

over all upstream and downstream channels

•

Supports high packet rates for maximum utilization of

available cable plant bandwidth.

Direct interface to:

•

Out-of-band (OOB) generator for messaging to BCM3352-

based cable modems.

BCM3034 QAMLink® advanced universal QAM modulator

(providing downstream data rates up to 100 Mbps)

BCM3138 QAMLink® dual-channel advanced PHY burst

receiver (providing upstream data rates up to 30 Mbps per

upstream channel)

Can be remoted from external routing/classification engine for

distributed CMTS (mini fiber node) applications.

•

SPI master port controls register interface to BCM3034 and

BCM3138 devices.

Packet port provides a high-throughput data interface to other

network equipment via the standard IEEE 802.3z GMII

Ethernet interface

PCI interface to external host CPU supports either 32-bit or 64-

bit operation at either 33 MHz or 66 MHz

PROPANE^TMpacket acceleration and SMART

SPECTRUM^TMtechnologies included for increased upstream

performance

•

Packaged in an 841-pin, thermally enhanced plastic ball grid

array.

•

Operates over industrial temperature range (–40 to +85

degrees C) PCI bus.

BCM3138

Dual Adv. TDMA

Receiver

Upstream

SDRAM

(PHS,

Upstream

SDRAM

(keys and

reassembly.)

BCM3138

output

BCM3138

queues)

Ethernet

Routing/

Classification

Engine

WAN

BCM3212

Advanced CMTS MAC

System

CPU

Memory

Downstream

SDRAM

BCM3034

Downstream

Modulator

(PHS,

output

queues)

Typical Application Block Diagram

中文翻译

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与BCM3212相关器件

型号	品牌	获取价格	描述	数据表
BCM3214	ETC	获取价格
BCM3225F2SF-75032-CT1-P	TAI-TECH	获取价格	Wire Wound Type Balun
BCM3225F3SF	TAI-TECH	获取价格	Wire Wound Type Balun
BCM3225F3SF-75011-CT1-P	TAI-TECH	获取价格	Wire Wound Type Balun
BCM3250	BOARDCOM	获取价格	ADVANCED 3D SET-TOP BOX DEVELOPMENT PLATFORM
BCM3252	BOARDCOM	获取价格	DUAL-CHANNEL FRONT-END DOCSIS 2.0 STB IC WITH CHANNEL BONDING
BCM3252KPBG	BOARDCOM	获取价格	DUAL-CHANNEL FRONT-END DOCSIS 2.0 STB IC WITH CHANNEL BONDING
BCM3255	BOARDCOM	获取价格	AVC/MPEG-2/VC-1 HD DIGITAL VIDEO SYSTEM-ON-A-CHIP SOLUTION FOR SATELLITE, IP, CABLE, AND W
BCM3300	BOARDCOM	获取价格	BCM3300 QAMLINK SINGLE CHIP DOCSIS CABLE MODEM
BCM3300KTB	BOARDCOM	获取价格	BCM3300 QAMLINK SINGLE CHIP DOCSIS CABLE MODEM

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