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Software control of I/O subsystem on media core processor

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5 Author(s)
Hirai, M. ; Multimedia Dev. Center, Matsushita Electron. Corp., Osaka, Japan ; Mochida, T. ; Hashimoto, T. ; Fujii, E.
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To reduce the cost of a DVD player, we have integrated peripheral functions to the audio and video decoder LSI. The peripheral functions are controlled by the I/O processing tasks on single I/O control processor. I/O processing tasks are switched in constant cycle without overhead, to achieve real-time performance and flexibility of software control. In the case of video output handling, software can control each line parameter. Therefore software with line level support of hardware can perform many kinds of functions; image resizing, copy guard and dynamic blending of the image and graphics

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Consumer Electronics, IEEE Transactions on  (Volume:44 ,  Issue: 3 )