BCM3214 - DOCSIS®/EuroDOCSIS™ 2.0-Based CMTS MAC

DOCSIS®/EuroDOCSIS™ 2.0-Based CMTS MAC

The BCM3214 QAMLink is highly integrated CMTS media access controller (MAC) chip for use in DOCSIS 2.0-based CMTS products. With hardware support for concatenation parsing, fragment reassembly, payload header suppression at speeds up to 40 Mbps physical-layer data rates, the BCM3214 serves as the heart of DOCSIS 2.0-based CMTS equipment.

The BCM3214 supports the association of one downstream channel with up to six upstream channels. By connecting multiple BCM3214 chips via the seamless master/slave interface, customers can achieve many downstream and upstream ratio configurations.

The BCM3214 combined with the BCM3040 QAMLink® downstream modulator and BCM3140 QAMLink burst receiver provides a complete solution for advanced DOCSIS 2.0-based cable headend equipment.

  • Supports all of the upstream and downstream management features for DOCSIS/Euro-DOCSIS 2.0 CMTS headend applications
  • Processes up to 400,000 packets per second in the aggregate over all upstream and downstream channels
  • Includes PCI and Ethernet interface connections
  • Incorporates the Broadcom Propane® packet acceleration technology
  • Directly interfaces to the BCM3140 and BCM3040