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Multimedia LSI accelerator with embedded DRAM

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3 Author(s)
I. Sase ; Oki Electr. Ind. Co. Ltd., Tokyo, Japan ; N. Shimizu ; T. Yoshikawa

To succeed in the graphics controllers market, it is important to take advantage of embedded DRAMs, which provide low power consumption, low electromagnetic interference (EMI), smaller board space, and frame memory flexibility (capacity, access speed, and bandwidth). These capabilities benefit portable PC applications in which board space and power consumption are serious considerations. The MSM7680 accelerator is ideally suited for a compact multimedia system because of its smaller, embedded DRAM capacity. The MSM7680 provides high performance and/or a one-chip solution for many graphics display systems. It also integrates the frame buffer with graphics controller functions such as a 2D drawing engine, MPEG-1 decoder, digital/analog converter for RGB analog output, and a clock generator phase-locked loop. The MSM7680 multimedia accelerator uses a 256-bit data bus with embedded 1.25-Mbyte DRAM to increase the rate of data transfers and decrease power consumption

Published in:

IEEE Micro  (Volume:17 ,  Issue: 6 )