| 摘要 |
PROBLEM TO BE SOLVED: To provide data transmission equipment and method for transmitting data shifted for a certain number of bits without intervention of a central processing unit, when the data is transmitted from a first storage unit to a second storage unit. SOLUTION: An existing direct memory access medium (DMA) stores successively from the first location of the memory addresses when reading data from the first memory and storing the data into the second memory. In contrast, a control register value in DMA is set when moving the data, so as to move the data after shifting the data for a certain number of bits. With this, for certain data, the data are shifted for the value set in the control register, and the shifted data are stored into another memory. COPYRIGHT: (C)2004,JPO&NCIPI
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