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A Low-Power Multimedia SoC with Fully Programmable 3D Graphics for Mobile Devices

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4 Author(s)
Jeong-Ho Woo ; Korea Advanced Institute of Science and Technology ; Ju-Ho Sohn ; Hyejung Kim ; Hoi-Jun Yoo

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 ¿m 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 152 mW for video applications.

Published in:

IEEE Computer Graphics and Applications  (Volume:29 ,  Issue: 5 )