MEMORY BUFFER, DEVICES HAVING THE SAME AND DATA PROCESSING METHOD THEREOF

摘要

A memory system includes a semiconductor memory device, a memory controller for controlling the semiconductor memory device, and a memory buffer connected between the semiconductor memory device and the memory controller. The memory buffer is configured to perform error correction coding (ECC) on first data that is received from the memory controller to be stored in the semiconductor memory device and to perform ECC on second data read from the semiconductor memory device.