Renesas Electronics America Announces Stream API License Program

  Renesas Electronics America Announces Stream API License Program

AMD Tested and Verified Chipset Compatible with Renesas’ Performance-Enhancing
                  UASP Software for External Storage Devices

Business Wire

SANTA CLARA, Calif. -- March 19, 2013

Renesas Electronics America, a premier provider of advanced semiconductor
solutions, today announced the launch of the Renesas’ stream Application
Programming Interface (API) license program for implementation externally.

In December 2009, Renesas developed a driver that utilizes the USB Attached
SCSI Protocol (UASP) defined by the USB Implementer’s Forum (USB-IF) and
further enhances the data transfer rate with external mass-storage devices.
This overcomes the performance boundaries of the legacy Bulk Only Transfer
(BOT) protocol defined in the USB 2.0 standard. In August 2011, Renesas
launched the µPD720230 USB 3.0-to-SATA3 bridge SoC. The Renesas USB 3.0 host
controllers, the µPD720230 SoC and the Renesas UASP driver, form the world's
first complete solution that fully commercializes the UASP technology in the
market, offering end users unprecedented transfer speed to the external

Renesas has now extended the UASP technology implementation to other companies
in order to facilitate a broader adoption of the technology. Based on a
cooperative agreement, key chipset manufacturer AMD has implemented the
Renesas proprietary API for the UASP driver to “stream” the data transfer
commands to the host driver. This “Stream” API enables compatibility between
Renesas’ UASP driver and non-Renesas host hardware. Today, Renesas’ UASP
driver runs not only on the Renesas µPD720200 USB 3.0 host controller and its
follow-on products (µPD720200A, µPD720201 and µPD720202), but also operates on
AMD’s A88X, A85X, A76M, A75, A70M, and A68M chipsets.

As part of its continuous promotion of the UASP technology, Renesas has made
the proprietary Stream API available to other UASP driver implementers,
including MCCI Corporation.

“Our mission is to offer our customers as wide a portfolio of USB connectivity
solutions as possible,” said Terry Moore, CEO, MCCI. “By partnering with
Renesas, we are able to offer developers access to high-performance USB
storage platforms they require.”

Through the Renesas Stream API licensing program (in the form of a software
library/wrapper), MCCI has integrated the software wrapper into their UASP
driver. MCCI’s UASP driver is now compatible with hardware using host driver
software that supports Renesas’ proprietary Stream API, achieving the high
data transfer performance of UASP, and maintaining the solid interoperability
that Renesas has built into its USB complete software solution. At the same
time, the Renesas solution will be offered to more end users.

Leadership in USB

USB 3.0 achieves data transfer speeds that are up to 10 times faster than the
previous version of the standard, enabling more rapid and efficient transfers
of data to and from external storage devices. Renesas led the industry by
introducing the world’s first USB 3.0 host controller in May 2009, and the
company’s lineup of USB 3.0 host controllers has been broadly adopted by
customers worldwide with total shipments already exceeding 60 million units.

As a member of the USB Implementers Forum (USB-IF) since 1996, Renesas
Electronics (formerly NEC Electronics) has played a leading role both in
defining USB standards and in developing USB technology. In April 2000, the
company (then NEC Electronics) launched the µPD720100 device, the world's
first USB 2.0-compliant host controller chip and an extensive lineup of other
USB devices, and has earned a reputation for delivering dedicated customer
service and high quality.

In May 2009, Renesas Electronics (then NEC Electronics) introduced the
industry's first USB 3.0 xHCI host controller and, only after four months of
its release, the company became the world’s first to earn the "Certified
SuperSpeed USB (USB 3.0)" certification from the USB-IF, and also started mass
production of the µPD720200 host controller. In the following year, the
company released its second USB 3.0 xHCI host controller (µPD720200A) and
passed the compliance and certification testing in only two months. These host
controllers have become the de facto USB 3.0 host controller standard and
provide excellent compatibility between PCs and PC peripherals that support
USB 3.0.

Following these devices, two new host controllers joined the Renesas USB 3.0
product lineup in March 2011 to deliver even faster transfer speeds, better
power efficiency, and more compact size than the company’s previous versions
of USB 3.0 host controllers.

Renesas Electronics is the world’s largest producer of USB 3.0 host
controllers and provides complete USB 3.0 solutions, which includes device
drivers for Windows™ XP, Vista™ and Windows 7. Renesas Electronics also
licenses both host and device-side USB 3.0 IP and offers USB host- and
device-side building blocks within its custom ASIC libraries for companies
wishing to design and market their own USB 3.0 integrated circuits.

Note: SATA (Serial ATA) is a storage interface specification that supports
high-speed serial communication. It was developed for high-speed data
transfers with mass storage devices such as hard-disk drives.

About Renesas Electronics America Inc.

Renesas Electronics America Inc., headquartered in Santa Clara, California, is
a wholly owned subsidiary of Renesas Electronics Corporation (TSE: 6723), the
world's number one supplier of microcontrollers and a premier supplier of
advanced semiconductor solutions including microcontrollers, SoC solutions,
and a broad range of analog and power devices. In the Americas, Renesas
Electronics America markets and sells industrial-type active-matrix LCD
modules from NLT Technologies, Ltd., a global leader in innovative display
technologies. More information about the products offered by Renesas
Electronics America can be found at

For more information, follow Renesas Electronics America at @RenesasAmerica on
Twitter and


SATA is an unregistered trademark of Serial ATA International Organization.
AMD is a trademark of Advanced Micro Devices, Inc. in the United States and/or
other jurisdictions. Windows and Vista are trademarks of Microsoft
Corporation. Other product names and service names that appear in this press
release are all trademarks or registered trademarks of their respective


Voce Communications, a Porter Novelli Company
Jessica Kerr, 415-975-2213
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