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NXP integrates WUSB in new device controller

Posted: 22 Sep 2006 ?? ?Print Version ?Bookmark and Share

Keywords:WUSB? wireless USB? device controller? Certified Wireless USB specification? RTU7011?

NXP Semiconductors, the company formerly known as Philips Semiconductor, unveiled a Wireless USB (WUSB) device controller based on the Certified Wireless USB specification.

The ISP3582 combines ease-of-use and speed of wired USB via wireless connectivity for high-speed picture transfers, music downloads, printing and data synchronization for PC peripherals and consumer electronics. Unlike a hub and dongle approach to WUSB, the low power, small-footprint ISP3582 integrates directly into end systems at the board level, allowing a seamless replacement of wired USB in today's current systems, NXP explained.

Key features of the device include ARM7 processor, 32Kbytes of ROM, 96Kbytes of configurable RAM for data and buffering as well as 16 endpoints and flexible firmware structure. It also has 16bit generic chip interface with DMA support with 4bit SDIO interface that meets 1.1 specifications.

The device extensions increase frequency to 50MHz. It also has optimized direct-board connections, using less circuitry than an embedded wireless hub while integrating a similar USB class driver structure for WUSB that eliminates software update needs.

According to Paul Marino, VP and GM of business line connectivity at NXP, the ISP3582 represents the first step toward widespread adoption of Certified Wireless USB. "As a testament to our continued leadership in connectivity solutions, we now provide engineers with the freedom to choose from our wired USB families, migrate a system from wired to wireless with our compatible I/O or go directly to a Wireless USB design," Marino said.

WUSB forecast
A recent report from marketing firm In-Stat forecasted that USB-enabled products will double by 2010, with WUSB as a vital contributor to this growth. Moreover, the report said that an internal WUSB solution, compared to a hub and dongle approach, is key for USB adoption in portable devices, like digital cameras, digital camcorders and portable digital audio players.

To lower overall design risk and ease system validation efforts, said NXP, the device undergone a high degree of interoperability testing with Intel's Wireless USB Host solution.

"We've been performing interoperability testing with the IP of NXP's ISP3582 with great success," said Ganesh Prasad, GM of UltraWideband networking operations at Intel, in a statement. "NXP's support on their Wireless USB device solution has been outstanding, and coupled with their knowledge of the USB market, it provides the company a bright future in this new wireless market."

The ISP3582 WUSB device controller is sampling now in 112-pin TFBGA package. High-volume pricing is less than $5.65. Evaluation kits, complete with Realtek physical layer support, are available for strategic customer engagements. Production shipments are expected in 2007.

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