Abstract: The present invention provides a data-read/write method of a bridge interface, which via appropriately controlling the signal level and the timing between the host system and the device, enables the bridge interface to have a complete information handshake, so that the bridge interface can work at any transferring speed and easily transform any instruction stream coming from a front bus. Accordingly, the present invention has the advantages of high compatibility and easiness of transforming instruction streams.

Abstract: A method for detecting logical addresses of a nonvolatile storage medium is proposed, which defines the nonvolatile storage medium into several zones each comprising a plurality of blocks. Only an address mapping table of the first zone or a commonly used zone is built and stored in a RAM so that the system can quickly obtain logical addresses in the nonvolatile storage medium. Therefore, the effects of quick access speed and no occupied memory space can be accomplished. Moreover, the cost can be effectively lowered, and the performance of data access of the system can be enhanced.

Abstract: A method for quickly detecting the state of a nonvolatile storage medium having a plurality of blocks therein is proposed. When the system stores data in any page of a blank block, the first page thereof is simultaneously marked. When there already is data in a block to be written in, because the first page of the block is already marked, it is not necessary to mark again. Therefore, it is only necessary to directly read the first page in each block when searching the block states in the nonvolatile storage medium. The state of the nonvolatile storage medium can be quickly detected based on the existence of a mark, hence effectively enhancing the performance of data access.

Abstract: The invention provides a method for expediting reading and writing on a non-volatile storage medium. The method is to adjust the size, location, and allocation unit (cluster) of each system parameter block of a non-volatile storage medium according to the storage medium's capacity and block size at the time when system planning/formatting is performed. Then, after system planning/formatting, the non-volatile storage medium is able to write in data starting from the initial position of one of the blocks of the non-volatile storage medium whenever the host end is storing the file data. Thus, the invention can reduce data movement and enhance system performance effectively.

Abstract: A method for detecting logical addresses of a nonvolatile storage medium is proposed, which defines the nonvolatile storage medium into several zones each comprising a plurality of blocks. Only an address mapping table of the first zone or a commonly used zone is built and stored in a RAM so that the system can quickly obtain logical addresses in the nonvolatile storage medium. Therefore, the effects of quick access speed and no occupied memory space can be accomplished. Moreover, the cost can be effectively lowered, and the performance of data access of the system can be enhanced.

Abstract: A method for quickly detecting the state of a nonvolatile storage medium having a plurality of blocks therein is proposed. When the system stores data in any page of a blank block, the first page thereof is simultaneously marked. When there already is data in a block to be written in, because the first page of the block is already marked, it is not necessary to mark again. Therefore, it is only necessary to directly read the first page in each block when searching the block states in the nonvolatile storage medium. The state of the nonvolatile storage medium can be quickly detected based on the existence of a mark, hence effectively enhancing the performance of data access.