摘要:
An electronic system includes: a processor configured to access operation data; a local cache memory, coupled to the processor, configured to store a limited amount of the operation data; a memory controller, coupled to the local cache memory, configured to maintain a flow of the operation data; and a memory subsystem, coupled to the memory controller, including: a first tier memory configured to store the operation data, with critical timing, by a fast control bus, and a second tier memory configured to store the operation data with non-critical timing, by a reduced performance control bus.
摘要:
A nonvolatile memory module includes at least one nonvolatile memory, at least one nonvolatile memory controller configured to control the nonvolatile memory, at least one dynamic random access memory (DRAM) used as a cache of the at least one nonvolatile memory, data buffers configured to store data exchanged between the at least one DRAM and an external device, and a memory module control device configured to control the nonvolatile memory controller, the at least one DRAM, and the data buffers. The at least one DRAM stores a tag corresponding to cache data and compares the stored tag with input tag information to determine whether to output the cache data.
摘要:
A semiconductor memory cell array is provided which includes a first memory cell array area including first group memory cells arranged in a chip in a matrix of rows and columns and having a first operating speed; and a second memory cell array area including second group memory cells arranged in the chip in a matrix of rows and columns and having a second operating speed different from the first operating speed. The first and second memory cell array areas are accessed by addressing of a DRAM controller.