MEMORY CONTROLLING DEVICE AND MEMORY SYSTEM INCLUDING THE SAME

A memory controlling device configured to connect to a memory module including a resistance switching memory cell array which is partitioned into a plurality of partitions including a first partition and a second partition is provided. A first controlling module accesses the memory module. A second controlling module determines whether there is a conflict for the first partition to which a read request targets when an incoming request is the read request, instructs the first controlling module to read target data of the read request from the memory module when a write to the second partition is in progress, and suspends the read request when a write to the first partition is in progress.