Semiconductor integrated circuit device

Electrical computers and digital data processing systems: input/ – Input/output data processing – Direct memory accessing

Reexamination Certificate

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Details

C710S008000, C711S147000, C711S148000, C711S152000, C711S153000

Reexamination Certificate

active

07139849

ABSTRACT:
A semiconductor integrated circuit device includes a plurality of internal memories, a main processor, which constitutes a first processing unit having a codec function, and a video interface and graphics processor, which constitute a second processing unit for video display processing. The semiconductor integrated circuit device operates while being connected to a CPU, which is an external processing unit, and an external memory. The semiconductor integrated circuit device is provided with a memory configuration controller for controlling the memory allocation to the first, the second, and the external processing unit in accordance with an application.

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Ito et al., “MPEG-4 Multi-Codec LSI for W-CDMA Image Terminals”, Matsushita Technical Journal vol. 47, No. 6, pp. 68-72, Matsushita Electric Industrial Co., Ltd., Dec. 2001.

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