Abstract: A flash memory controller having a configuring unit of error correction code (ECC) capability and method thereof are described. The flash memory controller includes a control unit, a buffer, an ECC module, and a configuring unit. The flash memory has a data area for storing the data content and a first spare area for storing a first ECC value corresponding to the data content. The ECC module utilizes the data content for generating a second ECC value and comparing the second ECC value with the first ECC value to determine whether the data content comprises a plurality of errors based on the compared result of the first ECC value and the second ECC value. The configuring unit computes the amount of the errors if the data content has the errors to determine whether the amount of the errors exceeds a predetermined threshold.

Abstract: A memory module and a method of performing the same for access of an external electronic device are provided herein. The memory module includes a NAND-type flash memory, a dynamic random access memory (DRAM) unit, and a memory controller. The dynamic random access memory unit which is electrically connected to the NAND-type flash memory includes a dynamic random access memory and an internal power. The memory controller is used for controlling at least one of both the NAND-type flash memory and the dynamic random access memory unit. When the memory module is disconnected with the external electronic device, the internal power of the dynamic random access memory unit powers the dynamic random access memory, actively. Accordingly, data stored in the dynamic random access memory will be retained.

Abstract: A storage device includes a multi-level cell flash memory having a plurality of physical memory cells, a read controller, and a write controller. The physical memory cells form a first page and a second page. The write controller in response to a first request is used for writing first data into the first page, duplicating the first data as a second data and writing the second data into the second page. The read controller is used for adjusting the stored data value complying with a desired storing value. Each physical memory cell comprises four threshold voltage ranges indicative of two-bit logical values. The two-bit data is assigned as a first logical value accordingly in response to a two-bit data corresponding to a first and second threshold voltage ranges in a first physical memory cell. The two-bit data is assigned as a second logical value accordingly in response to a two-bit data corresponding to a third and fourth threshold voltage ranges in a second physical memory cell.

Abstract: A flash memory control apparatus having a signal-converting module is described. The signal-converting module includes a primary controller, a signal-converting module, a data buffer, and a secondary controller. The primary controller generates a plurality of control signals based on a first control interface. The signal-converting module receiving a reading enable signal and a writing enable signal of the control signals and converts the reading enable signal and the writing enable signal into a writing/reading signal based on a second control interface. The data buffer stores the data from the primary controller according to the first control interface and stores the data from the flash memory according to the second control interface. The secondary controller transmits the writing/reading signal, a clock signal and a data strobe signal to the flash memory based on the second control interface.

Abstract: A storage system for backup data of a flash memory includes a flash memory for storing a first file, a detector for detecting a number of accesses to the first file, and a driving unit coupled to the detector. The driving unit is used for duplicating the first file as one or more second files when the number of accesses to the first file exceeds a predetermined value, and storing the one or more first files into the flash memory. If the access number is higher than the predetermined value, which indicates this file is more likely to be accessed, the invention automatically backups this file and accesses the backup file at the next access request for fear that the file is damaged by multiple access to the same file.

Abstract: A storage device for refreshing pages of a flash memory comprises a flash memory, an ECC detector and a controller. The flash memory has a plurality of pages, and each page comprises a data area for storing data and a spare area for storing error correction code (ECC) corresponding to the data. The ECC detector is used to get the number of error bits of each page. The controller coupled to the ECC detector is used for storing data and ECC in a first page to a second page when a number of used bytes of the ECC stored in a spare area of the first page exceeds a first predetermined value. A number of used bytes of the ECC stored in a spare area of the second page is less than the first predetermined value. The second page is a blank page.

Abstract: A flash memory storage device for boosting efficiency in accessing flash memory is disclosed. The flash memory storage device provides a Multi-level cell (MLC) flash memory for storing data, a single-level cell (SLC) flash memory for storing data, and a control unit for determining whether to store a file into the MLC NAND flash memory or a SLC NAND flash memory based on the file's data characteristics.

Abstract: A system for securing an access to a flash memory is provided. The system includes a first flash memory storage device having a plurality of storage elements for storing data, and a host for accessing the first flash memory storage device. The host includes a control unit, a storing unit, and an identification unit. The control unit is used for generating an identification code and assigning the identification code into a random storage element selected from the plurality of storage elements, when the first flash memory storage device is to be accessed by the host at the first time. The storing unit is used for storing the identification code and a set address corresponding to the stored storage element.