In a memory controller, at least one of a plurality of refresh methods varying in refresh target area of a dynamic random access memory (DRAM) is a refresh method of refreshing an entire area of the DRAM, and a specific event that disables access to the entire area of the DRAM occurs in a cycle longer than a refresh execution cycle using the refresh method of refreshing the entire area of the DRAM. The memory controller includes a selection unit configured to select one refresh method from among the plurality of refresh methods, depending on whether the specific event that disables the access to the entire area of the DRAM is to occur in a refresh execution period.