Anatomy of a portable digital mediaprocessor

Portable devices equipped with imaging, video, and audio functionality are proliferating rapidly, and manufacturers are shipping hundreds of millions of such devices. A general-purpose processor (GPP) typically consumes tens of watts to nearly a hundred watts, while a high-performance digital still...

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Bibliographic Details
Published in:IEEE MICRO 2004-03, Vol.24 (2), p.32-39
Main Authors: Deepu Talla, Hung, C.-Y., Raj Talluri, Brill, F., Smith, D., Brier, D., Xiong, B., Huynh, D.
Format: Article
Language:English
Subjects:
Anatomy
Auditory displays
Cameras
Computer programming
Consumption
Cost engineering
Costs
Decoding
Devices
Digital
Digital signal processors
Image coding
Manufacturing
Microprocessors
Portability
Printing
Streaming media
Transform coding
Video compression
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Summary:Portable devices equipped with imaging, video, and audio functionality are proliferating rapidly, and manufacturers are shipping hundreds of millions of such devices. A general-purpose processor (GPP) typically consumes tens of watts to nearly a hundred watts, while a high-performance digital still cameras main processor consumes only hundreds of milliwatts to nearly half a watt. Designing a mediaprocessor with performance comparable to that of a GPP at a power budget two orders of magnitude lower and a cost more than an order of magnitude lower poses quite a challenge. To meet requirements and reduce overall system cost, mediaprocessor designers must integrate the device with an extensive set of peripherals. For performance, cost, and power reasons, application-specific integrated circuits have traditionally been the most popular choice for portable media systems. We discuss the architecture of the DM310, a highly integrated portable digital mediaprocessor, manufactured in a 0.13-micron process.
ISSN:0272-1732
1937-4143
DOI:10.1109/MM.2004.1289289