bcm3215 Broadcom Corp., bcm3215 Datasheet
bcm3215
Manufacturer Part Number
bcm3215
Description
Octal Downstream Docsis 3.0 M-cmts Core Mac Chip
Manufacturer
Broadcom Corp.
Datasheet
1.BCM3215.pdf
(2 pages)
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OCTAL DOWNSTREAM DOCSIS
Broadcom’s BCM3215 is a DOCSIS
support for eight channels in M-CMTS™ applications
Support for Downstream Edge PHY Interface (DEPI)
protocols in M-CMTS applications
Advanced packet-bonding capability support for up to N-
QAM channels
Packet port provides a high-throughput data interface to
network equipment via a standard IEEE 802.3z GMII
Ethernet interface
Full DOCSIS downstream framing including Baseline Privacy,
Payload Header Suppression, and MPEG Transmission
Convergence
Support for industrial temperature range of –40°C to +85°C
Class-based queuing allows traffic prioritization of high,
medium, and low priority
F E A T U R E S
Backplane
Octal Downstream DOCSIS M-CMTS™ Core MAC Chip
CMTS
®
®
Core MAC chip with
24-Channel M-CMTS™ Core MAC Blade
Core MAC
BCM3215
DDR Memory
M-CMTS
Core MAC
BCM3215
M-CMTS
Core MAC
®
BCM3215
M-CMTS
SPI Boot
BCM3215
ROM
3.0 M-CMTS™ CORE MAC CHIP
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A high-performance, integrated solution for downstream
transmission for data, video, and telephony applications over
cable HFC networks
Eight independent channels per package enable high-density
equipment designs, reducing equipment floor space
requirements.
Provides full DOCSIS/EuroDOCSIS™ compliance for use in
Modular-CMTS equipment.
Faster line rates enable advanced data services over cable
without stranding deployed equipment.
Enables traffic prioritization for minimizing latency in delay-
sensitive information such as voice and DOCSIS MAP
packets.
Enables advanced functions to be deployed in harsh
environments.
• Distributed CMTS in Hybrid Fiber Coaxial Fiber Node
S U M M A R Y O F B E N E F I T S
Ethernet
Gigabit
PHY
To M-CMTS
Edge QAM
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bcm3215 Summary of contents
Page 1
... OCTAL DOWNSTREAM DOCSIS • Broadcom’s BCM3215 is a DOCSIS support for eight channels in M-CMTS™ applications • Support for Downstream Edge PHY Interface (DEPI) protocols in M-CMTS applications • Advanced packet-bonding capability support for QAM channels • ...
Page 2
... The packets then undergo payload header suppression, DOCSIS header creation, DES/AES encryption, CRC and HCS generation, MPEG encapsulation, and timestamp generation. The BCM3215 supports up to 560 Mbps of any packet size with the ability to queue packets from the GMII interface at the full 1000 Mbps rate. ® ...