HUB DEVICE, METHOD FOR SELECTING PRE-FETCH MODE, MEMORY SYSTEM AND MEMORY SUBSYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a system and method for dynamically selecting either of able or disable of a pre-fetch function for a memory device. SOLUTION: A hub device includes an input command stream interface and an adaptive pre-fetch logical unit (APLU). The input command stream interface detects commands from a memory controller directed to one or more memory devices that are connected to the hub device. The APLU independently analyzes the commands to determine access patterns to the memory devices and dynamically selects between enabling a pre-fetch function and disabling the pre-fetch function for the memory devices based on the results of the analysis. COPYRIGHT: (C)2008,JPO&INPIT