- MEMORY ACCESSING METHOD STORAGE-CLASS MEMORY AND COMPUTER SYSTEM

摘要

A memory access method, a storage-class memory 50, and a computer system 100. The computer system 100 includes a memory controller 20 and a hybrid memory. Hybrid memory includes dynamic random access memory (DRAM) 40 and storage-class memory (SCM) The memory controller 20 is used to transfer the first access command to the DRAM 40 and the SCM 50. [ When the SCM 50 determines that the first storage unit set of the DRAM 40 designated by the first address in the received first access command includes a memory cell whose holding time is shorter than the refresh period of the DRAM 40 , The SCM 50 may obtain a second address having a mapping relationship with the first address. The SCM 50 also converts the first access command into a second access command for accessing the SCM 50 in accordance with the second address to access the SCM 50. [ The computer system 100 can ensure the accuracy of the data on the basis of reducing the refresh power consumption of the DRAM 40. [