STORAGE DEVICE, CONTROLLER, AND WRITE CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To perform efficient write control when simultaneously writing data into a plurality of banks of a non-volatile memory from a buffer.SOLUTION: A storage device includes: first write control means which sequentially writes data transmitted from a host into a plurality of buffer areas in a buffer; and second write control means which has a plurality of bank write units respectively corresponding to the plurality of banks in a non-volatile memory. When one of the plurality of bank write units reads out data written in one of the plurality of buffer areas, the first write control means writes data transmitted from the host into the buffer area from which the data has been read out, and each bank write unit reads out the first buffer area out of the plurality of buffer areas independently of data write processing states of the other bank write units and writes the read data into the corresponding bank.