| 摘要 |
PROBLEM TO BE SOLVED: To improve the accessing efficiency in switching a bank by moving the access to another bank in a clock cycle where the data is not exchanged in a bank, in a memory control device and a memory control method for controlling SDRAM composed of plural banks. SOLUTION: An inputted request is divided into requests for each of the banks by a request distributing circuit 11, and a command for each bank is generated by command generating circuits 12A, 12B for each bank. During a period when the data is not exchanged in the present bank, a precharge command of the present bank is procrastinated, and the access command of another bank takes priority. Therefore a weight in exchanging the bank is not generated, and the access can be efficiently executed.
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