Block management method, memory controller and memory stoarge apparatus

Patent metadata

Field	Value
Publication number	US-9213629-B2
Application number	US-201113233034-A
Country	US
Kind code	B2
Filing date	Sep 15, 2011
Priority date	Jul 13, 2011
Publication date	Dec 15, 2015
Grant date	Dec 15, 2015

Abstract

A block management method for a rewritable non-volatile memory module having a plurality of physical blocks, and a memory controller and memory storage apparatus using the same are provided. The method includes logically grouping the physical blocks at least into a data area, a free area and a replacement area and configuring a plurality of logical blocks for mapping to the physical blocks of the data area. The method also includes assigning bad physical blocks into the data area and marking the logical blocks mapping to the bad physical blocks as bad logical addresses, thereby forbidding the access of the logical blocks mapping to the bad physical blocks. According, the method can effectively use the rewritable non-volatile memory module having too many bad physical blocks to store data.

First claim

What is claimed is:

1. A block management method for a rewritable non-volatile memory module, wherein the rewritable non-volatile memory module has a plurality of physical blocks, the block management method comprising:
logically grouping the physical blocks into at least a data area, a spare area and a replacement area, wherein the physical blocks of the data area includes at least one bad physical block;
configuring a plurality of logical blocks for mapping to the physical blo…

Assignees

• Yeh Chih-Kang
• Phison Electronics Corp

Inventors

• Yeh Chih-Kang

Classifications

• G06F12/0246 Primary

  Physics · mapped topic