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Tensilica’s Xtensa processors fit in several types of wireless applications:
- In handset designs, where existing processor
performance is inadequate yet hard-wired solutions
are too inflexible. Applications such as audio
and video processing are easily implemented
using an optimized Xtensa processor. Check out
our Consumer applications
section for more information
on these applications.
- In the digital baseband portion
of the mobile handset, handling the 3G forward
error correction standard and turbo coding.
Read more…
- In wireless USB solutions. Read more...
In wireless video transmission. Read More...
Find out more about how Xtensa processors are
ideal for wireless applications:
Digital Cellular Baseband Processor
In emerging markets in developing countries, there’s
a need for extremely low cost, voice-only cellular
handsets. This will force even higher integration
in the silicon chips to meet very aggressive cost
targets. Traditionally, the digital baseband processor
has both a small RISC control CPU and a dedicated
DSP core for audio processing. Ultra low-cost voice
handsets will need higher integration levels in
both the digital and analog portions of the silicon.
Due to the need for higher integration in the
digital portion of the baseband processor, Tensilica’s
Xtensa CPU architecture is the best choice for
this function. Tensilica’s base Xtensa processor
is an efficient RISC controller, and the instruction
set can be extended to handle the tasks in a digital
baseband application presently performed by a dedicated
DSP core. A single development environment speeds
system design, and lower overall costs are easily
achieved with the Xtensa architecture.
Xtensa Configuration Highlights
- Custom instructions for digital baseband DSP
functions
- Minimal silicon area, combine CPU and DSP
- Viterbi support to eliminate dedicated hardware
Xtensa Benefits
- Eliminate separate DSP core, reduces area
- Performs previously hardwired functions in
processor extensions, reduces costs
- Single development environment decreases system
design integration time
Wireless USB
Xtensa processors are being used by several customers for wireless USB applications.
WiQuest Communications, Inc.'s WQST110/101 Certified Wireless USB silicon is being used by Dell and Lenovo in their latest notebook PC products. Dell's Inspiron 1720 notebook and Lenovo's ThinkPad T61/T61p 15.4-inch widescreen notebook computers are part of the first wave of wireless USB platform certifications awarded by the USB Implementers Forum (USB-IF). Further wireless USB embedded PCs, adapaters and hubs, based on WiQuest certified silicon, are expected to be certified soon.
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Dell Inspiron 1720 |
Lenovo ThinkPad T61/T61p |
Notebook computers with WiQuest's wireless USB solution.
Wireless Video Transmissions
SiBEAM, Inc., a leading innovator of millimeter wave (mmWave) solutions and developer of high-speed wireless communications platforms, is using Tensilica’s Xtensa® configurable processor for a baseband DSP in the wireless link for consumer electronics and display applications, such as HDTV. These applications demand high data rate transmission to multiple devices within an indoor wireless environment using conventional CMOS silicon. By optimizing the Xtensa processor into a tailored processor core, their products can attain the multi-gigabit performance these wireless applications demand.
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