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Issue No. 05 - September/October (2009 vol. 29)
ISSN: 0272-1716
pp: 82-90
Hyejung Kim , Korea Advanced Institute of Science and Technology
Hoi-Jun Yoo , Korea Advanced Institute of Science and Technology
Ju-Ho Sohn , LG Electronics
Jeong-Ho Woo , Korea Advanced Institute of Science and Technology
ABSTRACT
A low-power multimedia SoC integrates a fully programmable 3D graphics for mobile devices with an MPEG4/JPEG codec and H.264 decoder for mobile devices. A mobile unified shader achieves programmable vertex shading and pixel shading in a single die, reducing silicon area and power consumption by 35 percent and 28 percent, respectively. A logarithmic lighting engine and specialized lighting instruction improve the vertex fill rate, including transformations and lighting, to 9.1 million vertices per second. Implemented on a 6.4 mm × 6.4 mm chip with 0.13 μm CMOS logic, the SoC consumes less than 195 mW for 3D graphics applications at 1.2 V supply voltage and 100 MHz operating frequency and less than 152mW for video applications.
INDEX TERMS
Mobile multimedia SoC, programmable, 3D graphics, mobile unified shader, low-power design
CITATION
Hyejung Kim, Hoi-Jun Yoo, Ju-Ho Sohn, Jeong-Ho Woo, "A Low-Power Multimedia SoC with Fully Programmable 3D Graphics for Mobile Devices", IEEE Computer Graphics and Applications, vol. 29, no. , pp. 82-90, September/October 2009, doi:10.1109/MCG.2009.88
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