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Video camcorders place extreme demands on internal
electronics due to the heavy processing requirements
of MPEG and the need for low power consumption. The
main system controller must manage the video encoding/decoding
while sending the video stream to the LCD display.
At the same time, it must manage multiple system
functions such as focus, zoom, exposure, color balance,
etc. Most video controller chips use multiple processor
cores for the many functions supported.
Tensilica's Diamond Standard 330HiFi is an optimized, drop-in solution for portable music applications, with a complete set of software codecs for multiple popular audio standards. The Xtensa HiFi 2 Audio Engine is a comprehensive click-box option with Xtensa LX2 processor cores.
Tensilica's Diamond Standard 38xVDO family is a set of four video engines optimized for portable devices, with a complete set of software encoders and decoders for popular video standards.
Tensilica’s Xtensa processors can be utilized
in a camcorder controller chip, with multiple processors
handling the MPEG function and a single Xtensa processor
for basic control functions and audio processing.
System design is greatly eased by employing a single
architecture for the main system control and the
video processing subsystem. Ports
and queues allow
extremely high data bandwidth within the MPEG subsystem,
and post silicon implementation flexibility due to
its fully programmable nature.
Xtensa Configuration Highlights
Xtensa Benefits
- Single architecture in a multiple processor system
decreases system integration time
- Fully programmable hardware decreases system
design risk and hardware re-design probability
- VLIW (FLIX) instruction
encoding increases per cycle performance
- Custom instructions for audio and video codecs
increase system performance
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