Memory control apparatus and method of controlling memory access capable of selecting page mode in order to reduce memory access time

摘要

PURPOSE: A memory controller capable of selecting a page mode to reduce a memory access time and a method for controlling memory access are provided to remarkably shorten the memory access time by flexibly deciding the page mode through comparison between a page hit ratio of each bus master and a threshold page hit ratio. CONSTITUTION: A storing circuit(310) receives/stores the threshold page hit ratio for each bus mater. A calculating circuit(323) calculates/outputs the page hit ratio of each bus master by receiving a memory access amount and the page hit ratio from each bus master. A comparing circuit(330) outputs a page mode control signal by comparing the threshold page hit ratio with the page hit ratio calculated from the calculating circuit.