Reliable electronic fuse based storage using error correction coding

Abstract

An apparatus for reliable fuse-based storage in an Integrated Circuit (IC) includes a plurality of electronic fuses and processing logic. The electronic fuses store (i) data bits, (ii) parity bits that were generated from the data bits in accordance with an Error Correction Code (ECC) scheme, and (iii) access information required for accessing the data bits and the parity bits. The processing logic receives a read command for reading given data bits from the electronic fuses, based on the read command retrieves access information specifying given electronic fuses storing the given data bits and given parity bits associated with the given data bits, using the access information reads the given data bits and the given parity bits from the given electronic fuses, applies the ECC scheme to the given data bits and the given parity bits, using the ECC module to generate corrected data bits, and outputs the corrected data bits.