STORAGE DEVICE AND INFORMATION PROCESSOR

摘要

PROBLEM TO BE SOLVED: To change properly data writing processing speed and data readout processing speed. SOLUTION: When a controller 3 of a semiconductor storage device 1 receives a grade designation signal to designate a grade from a setting device 11, the controller executes logical block allocation processing so that flash memory chips CP whose numbers correspond to a grade designated by the received grade designation signal can execute data writing processing and data readout processing in parallel. COPYRIGHT: (C)2011,JPO&INPIT