Silicon Motion, Inc.

Chi-Lung Wang

Chien-Cheng Lin

Chia-Hsin Chen

Chia-Ta Huang

A data storage device including a flash memory and a controller. The flash memory includes a plurality of dies having a plurality of columns, wherein each of the columns is constituted by a plurality of sectors. The controller performs a read operation or a write operation from a first column to an Nth column in response to a read command or a write command, and skips at least two columns within the range of the first column to the Nth column according to a first bad column data set, wherein the first bad column data set has a starting address and the number of columns.

Data storage device and data accessing method thereof

A method for maintaining address mapping for a flash memory module is disclosed including: recording a first set of addresses corresponding to a first set of sequential logical addresses in a first section of a first addressing block; recording a second set of addresses corresponding to a second set of sequential logical addresses in a second section of the first addressing block; recording a third set of addresses corresponding to a third set of sequential logical addresses in a first section of a second addressing block; and recording a fourth set of addresses corresponding to a fourth set of sequential logical addresses in a second section of the second addressing block; wherein the second set of logical addresses is successive to the first set of logical addresses, and the third set of logical addresses is successive to the second set of logical addresses.

Apparatuses for managing and accessing flash memory module

A method for performing block management is provided. The method is applied to a controller of a Flash memory, where the Flash memory includes a plurality of blocks. The method includes: adjusting a dynamic threshold according to at least one condition; and comparing a valid/invalid page count of a specific block of the plurality of blocks with the dynamic threshold to determine whether to erase the specific block. An associated memory device and a controller thereof are also provided, where the memory device includes the Flash memory and the controller. In particular, the controller includes a read only memory (ROM) arranged to store a program code, and further includes a microprocessor arranged to execute the program code to control access to the Flash memory and manage the plurality of blocks, where under control of the microprocessor, the controller operates according to the method.

Growing community of inventors

Zhubei, Taiwan

Chi-Lung Wang