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.