Importance

Loading Importance Indicators...

Abstract

A cache memory system has a group of layered memories has two or more memories having different characteristics, an access information storage which stores address conversion information from a virtual address into a physical address, and stores at least one of information on access frequency or information on access restriction, for data to be accessed with an access request, and a controller to select a specific memory from the group of layered memories and perform access control, based on at least one of the information on access frequency and the information on access restriction in the access information storage, for data to be accessed with an access request from the processor, wherein the information on access restriction in the access information storage comprises at least one of read-only information, write-only information, readable and writable information, and dirty information indicating that write-back to a lower layer memory is not yet performed.

Loading the Abstract Image...

First Claim