| 摘要 |
PROBLEM TO BE SOLVED: To supply data to RAM without any waste time by using a DMA transfer circuit and to smoothly perform a data processing. SOLUTION: The picture signal processing circuit is provided with an image processor outputting picture data from plural picture data output means, plural RAMs storing picture data from the image processor in a frame unit and plural CPUs which are installed for RAMs by one to one and perform signal processings based on picture data stored in the RAMs. A DMA transfer circuit where input ports and output terminals are connected by individual signal lines is inserted between the image processor and the plural CPUs. When picture data supplied from the image processor is supplied to RAMs corresponding to the plural CPUs, the DMA transfer circuit interrupts the signal processing of CPUs and supplies picture data to the CPUs which signal-process picture data stored in RAMs so as to store it. |
