bcm3216 Broadcom Corp., bcm3216 Datasheet

bcm3216

Manufacturer Part Number

bcm3216

Description

Bcm3216 Docsis 3.0 Upstream Mac Chip

Manufacturer

Broadcom Corp.

Datasheet

1.BCM3216.pdf (2 pages)

Current page: 1 of 2
Download datasheet (169Kb)

•

The Broadcom BCM3216 is a DOCSIS

for Cable Modem Termination System (CMTS) equipment used in

broadband cable networks.

Supports up to 512 L2TPV3 sessions to handle 128 physical

upstream channels.

Dual-packet port provides a high-throughput data interface to

network equipment via standard IEEE 802.3z™ GMII Ethernet

interface.

Full DOCSIS 1.0/2.0/3.0 upstream support including: Segment

sequence reordering and DOCSIS frame extraction, Baseline

P r iv a c y w it h D E S / A E S , P a y lo ad H e a d e r S u p p r e ss io n ,

Concatenation, and Fragmentation.

Supports seamless interface to BCM3142 12-Channel DOCSIS 3.0

Burst Receiver either through direct connection or with a switch

fabric.

Supports Broadcom’s packet accelerator technology Propane

increased efficiency in upstream operation.

Supports up to 350,000 packets-per-second or operation up to

600 Mbps.

Supports up to 64K flows with a flexible association between

L2TPV3 Session and SID to FLOW ID.

Support for junction temperature of 0°C to 85°C

DOCSIS 3.0 Cable Modem Termination System (CMTS) Block Diagram

F E A T U R E S

BCM3216 DOCSIS

3.0 Upstream MAC chip

60 Channels (each up to 5.12 Mbaud, Q256)

DOCSIS 3.0 Upstream PHY Slice

12-Channel DOCSIS 3.0

BCM3142

Burst Receiver

for

3.0 UPSTREAM MAC CHIP

BCM3216

•

A high-performan ce, integrated solution for upstream

transmission for data, video and telephony applications over

cable HFC networks.

Hardware support for MAC-layer per-packet functions

including bonding reassembly, fragmentation, concatenation,

and payload header suppression, offloads system CPU, giving

higher overall system performance.

Flexible association between MAC and PHY capacity enables

high-density equipment designs with efficient scalability,

reducing equipment floor space requirements.

Provides full DOCSIS/EuroDOCSIS™ 3.0 compliance for use in

CMTS equipment.

Faster line rates enable advanced data services over cable without

stranding deployed equipment.

Dual-packet ports architecture relieves congestion on ingress and

egress thus reducing switch fabric buffer requirements.

All provisioning is in-band over the packet port and carried over

UDP/IP.

Egress packets are encapsulated in UDP/IP with per flow

destination selection of up to eight PDU or MAC management

destinations.

The BCM3216 is field upgradable both for firmware and

hardware.

DOCSIS 3.0 Upstream MAC

Slice: 350,000 pkts/sec

DOCSIS 3.0 Upstream

Resequencing + MAC

DOCSIS 3.0 Upstream

Resequencing + MAC

BCM3216

128M x 16

INTF x 4

SDRAM

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

DDR2

Related parts for bcm3216

bcm3216 Summary of contents

Page 1

... All provisioning is in-band over the packet port and carried over UDP/IP. • Egress packets are encapsulated in UDP/IP with per flow destination selection eight PDU or MAC management destinations. • The BCM3216 is field upgradable both for firmware and hardware. BCM3142 12-Channel DOCSIS 3.0 Burst Receiver DOCSIS 3.0 Upstream PHY Slice DOCSIS 3.0 Upstream MAC 60 Channels (each ...

Page 2

... BCM3216. All configuration and management of the BCM3216 is done via the GMII interface. A single BCM3216 can support up to 512 L2TPV3 reassembly sessions. Since each logical channel is associated with at least one session ID, one BCM3216 can interface with as many as 512 logical channels (128 physical channels assuming four logical channels per physical channel) ...

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