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XMOS chip revolutionises consumer design

Monday 09 July 2007 09:00

Today, XMOS Semiconductor, the fabless semiconductor company from Bristol, launches itself onto the market after two years developing its products in stealth mode.

The company’s first prototype products are currently at TSMC. In Q4 07, technical details of the architecture and beta tool availability will be announced, and in Q1 08, the first device family, launched at price points between $1 and $10, will be introduced along with development tools and a software IP library.

“Low-cost is always the most interesting place to be,” said David May FRS, CTO of XMOS and professor of computer science at Bristol University. XMOS’ chips are one tenth the cost of current FPGA chips but they will have enough performance to support 200Mbit/s Ethernet, 7MSPS 16-tap FIR or 500MIPS control software.

The products are a new class of semiconductor devices called software defined semiconductor devices (SDS) aimed at bringing low-cost user programmability to the consumer electronics industry. The chips are programmable in C.

Like the Inmos Transputer, for which May was also the architect, the XMOS architecture is an array of parallel processing cores. It is an event-driven processing engine with pin control integrated within the core (Xcore) allowing the entire system, including interfaces to be implemented in software. XCore-to-Xcore communications capability allows arrays of cores to be built up.

The market need for SDS devices is the dearth of innovation in the consumer electronics industry. “This is all driven by the cost of state of the art ASIC going up and up,” said May, “so designers have to design chips that cover the whole world market. That strangles innovation. Innovation has been squeezed out of consumer electronics.”

“We want to develop a third party IP community”, added May, “the opportunities for developers are enormous. People haven’t been able to anything innovative because of the cost of Asic. If you use Asic you have to raise a few million dollars. It wasn’t like that, you used to be able to do it in a garage. C allows you to develop IP very very rapidly.”

SDS chips will allow consumer companies to try out concepts quickly and cheaply. “To do consumer electronics well you have to experiment in the market by trying products out on customers”, said May, “you have to have a fast way of finding what works and what doesn’t.”

XMOS has venture capital backing from Hermann Hauser’s VC fund, Amadeus Capital Partners, and from Esprit Capital Partners. It has a team of 23 people in Bristol. CEO is James Foster, formerly CEO of Oxford Semiconductor, and vp of marketing is Noel Hurley, formerly of ARM.

“When we talked to high volume consumer electronics companies, one of the issues they’re having is differentiation,” said Hurley, “they tell us: ‘I receive my reference design, I’ve got the software drivers already ported to it. The big issue is that, so do all my competitors. So how do I differentiate my product?’”

SDS provides differentiation. “Customers have software engineers who understand C,” added Hurley.

Read more on the XMOS Semiconductor developments on Mannerisms, the blog of David Manners.

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