| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an expanding circuit capable of being connected to a main processing chip, while maintaining versatility of each circuit, without increasing the circuit scale. <P>SOLUTION: An RGB image data output from an ADC 3 is buffered in a memory 48 as a YUV image data after the RGB image data is processed by an SPU 42 and an RPU 43. The YUV image data output from a YUV output portion 45 is encoded in an image compression-expansion chip 5A and is transferred to a main chip 4 by a DMAC 52. Conversely, a compressed moving-picture data is transferred to the image compression-expanding chip 5A by control of a DMAC 44; and after the compressed moving-picture data is decoded, the data is converted into RGB image data in an RGB sampling portion 54 and is input to the main chip 4 by the SPU 42. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
