| 摘要 |
PROBLEM TO BE SOLVED: To provide a DMA control device adding no excess white data to the periphery of plotting data when executing DMA, and requiring no excess memory more than a memory required for storing the plotting data. SOLUTION: When the DMA is continuously generated in a band unit, a starting address and a finishing address of a transferring band are formed, these addresses are sent to a memory controller of a printing control device, and for example, when transferring the DMA in a burst transfer unit of 8 words, the burst transfer unit of the DMA can be changed on a DMA cycle for covering the forefront and the end of the band. |
