Patent ID: 8405588

Claim:
A data accessing system, comprising: a data retrieving device; M data transmission lines, coupled to the data retrieving device; and a data storage device, coupled to the M data transmission lines, the data storing device comprising: a data storing module, having L banks, the data storing module being utilized for storing a (N×M)-bit digital data separately in the L banks; and a data accessing interface module, coupled to the data storage module, for reading and outputting the (N×M)-bit digital data, the data accessing interface module comprising: a register module, for transmitting data of a bank for L times in sequence, and receiving and latching the digital data included by a bank from the data storage module when transmitting data each time, until the (N×M)-bit digital data is totally latched in the register module; and a multiplex output module, coupled to the register module, for continuously select a M-bit digital data from the (N×M)-bit digital data registered in the register module, and input the M-bit digital data to a data retrieving device via M data transmission lines; wherein the data retrieving device comprises: a first sequential input module, for sequentially receiving the M-bit digital data; and a second sequential input module, coupled to the first sequential input module, for sequentially receiving and latching the M-bit digital data from the multiplex output module; and the data accessing system further comprises: a control unit, coupled to the multiplex output module and the first sequential input module, for outputting a selecting control signal to the multiplex output module to control the multiplex output module to periodically select a M-bit digital data from the (N×M)-bit digital data, and outputting a plurality of clock control signals to the first sequential input module to control the first sequential input module to generate a plurality of latch control signals to the second sequential input module to constantly latch the M-bit digital data.