Cooperative memory management

摘要

A cooperative memory card system includes a memory card device, and a host in signal communication with the memory card device, where the host assumes at least one memory management function for the memory card device; and a corresponding method of cooperative memory management between a host and a memory card device includes selecting at least one of several memory management functions to be performed by the host for the device.

主权项

1. A cooperative memory card system comprising:
a memory card device comprising a controller and a flash memory in signal communication with the controller, the flash memory comprising a region having an operating system image and a region having user data; and a host in signal communication with the memory card device, wherein flash translation layer (FTL) functions executable by both the memory card device and the host are partitioned such that overlapping functions activated on one of the host or the memory card device are not activated on the other of the host or memory card device, respectively, wherein those FTL functions to be executed by the host are loaded from the memory card device to a random access memory of the host, and wherein the FTL functions for execution by the host are at least one of a function for address mapping, wear leveling and garbage collection.