Memory control apparatus and method for storing data in a selected cache memory based on whether a group or slot number is odd or even

摘要

A memory control apparatus according to the invention is interposed between a central processing unit and a memory device to store data and has: a channel control unit to control a data transfer to/from the central processing unit; a drive control unit to control a data transfer to/from the memory device; a plurality of cache memories to temporarily store the data which is transferred between the central processing unit and the memory device; and a cache memory control unit having selecting means for selecting the cache memory to store the data which is transferred from the memory device. The memory control apparatus selects the cache memory to store the data so as to almost equalize use amounts in the plurality of cache memories, thereby controlling the allocation of the cache memories and enabling a cache memory space to be effectively used.