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Micrel, Marvell roll standard PHY for in-car n/w

Posted: 26 Sep 2012     Print Version  Bookmark and Share

Keywords:Ethernet  PHY  in-vehicle 

Marvell and Micrel Inc. join hands to unveil what is said to be the world's first fully interoperable IEEE 802.3 standard-compliant Ethernet PHY for in-vehicle networking.

The two companies successfully demonstrated the technology at the recent Nikkei Electronics Symposium, which took place September 5, 2012 in Tokyo, Japan. With this newly proven solution, the automotive industry now can leverage the existing ecosystem of Ethernet networking applications for use in the next-generation of mission critical vehicle diagnostics, infotainment and connected-car platforms, said the companies.

"As on-board networking grows more complex and more critical to an automaker's ability to differentiate itself, the auto industry has developed an acute need for standards-based networking solutions that can withstand the unique conditions and regulatory requirements for today's cars. With hundreds of on-board sensors that must connect to a central computer, and with Internet-connected infotainment systems that tie into a vehicle's primary operating structure, it is critical that auto manufacturers can reuse IEEE standards based silicon from high-volume markets to streamline development, production and cost-effective deployment," said Steve Dansey, vice president of Marvell's CSI business unit.

For several years, the automotive industry has been unable to use common Ethernet protocols for on-board networking. Legacy silicon does not meet stringent automotive emissions requirements, and the development of car-specific PHYs has been historically cost prohibitive. However, Micrel and Marvell's family of standard PHYs support speeds of up to 100Mbit/s and run with less power and fewer emissions—bringing them well within the desired specifications for the auto industry. Now automakers can take full advantage of the benefits of Ethernet protocol to develop the next-generation of in-vehicle networking architecture, said the companies.

"Utilising standard IEEE technology will allow the automotive industry to take full advantage of the vast existing foundation of Ethernet networking applications," noted Wiren Perera, vice president of Corporate Strategic Marketing, Micrel. "This new solution also provides immediate access to multiple other standards such as energy efficient Ethernet (EEE) for reduced power consumption and power over Ethernet (PoE) for transmission of power without requiring extra wires. We are very pleased to collaborate with Marvell on this ground breaking technology. Auto manufacturers now have the technology and solutions to build new systems that will change the way we drive."





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