Patent ID: 8489942
Filing Date: 2013-07-16
Classification: G06F

Abstract:
1. A memory management method, for a rewritable non-volatile memory module, wherein the rewritable non-volatile memory module comprises a plurality of physical unit groups, each of the physical unit groups comprises a plurality of physical unit sets, each of the physical unit sets comprises a plurality of physical units, and the physical units in each of the physical unit sets at least comprise a first physical unit, the memory management method comprising: grouping the physical unit groups into at least a first area and a second area, setting the physical unit groups of the first area in a first program mode and setting the physical unit groups of the second area in a second program mode, wherein the first program mode indicates that all of the physical units are programmable, and the second program mode indicates that only the first physical unit is programmable; and when a first physical unit group in the second area satisfies a second damage condition, using a second physical unit group of the first area to replace the first physical unit group, and setting the second physical unit group in the second program mode, wherein the second physical unit group is unable to be set back in the first program mode.