SEMICONDUCTOR STORAGE SYSTEM

摘要

A semiconductor storage system comprises a semiconductor storage element array including a plurality of semiconductor memory elements, a data bus for transferring data to said semiconductor storage element array, an address bus for inputting an address to said semiconductor storage element array, a read/write controller for controlling read/write of the data written to said semiconductor storage element array, an interface control module for controlling a transfer/receipt of data and commands to and from an outside system, a microprocessor for generalization-controlling said read/write controller and said interface control module, a defect address memory for storing and outputting information on an address where at least one defective bit exists and an alternate address to be alternated with said address, and a defect address manipulating circuit for alternating said alternate address with said address where said defective bit exists in accordance with an output of said defect address memory.