| 摘要 |
An apparatus, having a simple configuration capable of reading data from DRAM in hyper-page mode at high speed. When a change in row address is detected while reading the data, storing of data read after the detection and changing of address are prohibited, and the read data is discarded. When the number of accesses has reached a predetermined number, the processing is terminated. When necessary data have not been stored, the row address is changed, and remaining data to be read is read in the hyper-page mode. Further, when it is determined that the necessary data have been stored before the number of accesses reaches the predetermined number, setting of data read thereafter is prohibited, as well as changing of address is also prohibited, thereby discarding the read data.
|
