Single-chip microcomputer which can generate error correction code or ECC data internally can reduce user's working load and required memory capacity without increasing ECC data write time

摘要

The microcomputer has an electrically erasable memory (8) for temporary storage of externally delivered user data and ECC data corresponding to the user data , a program memory (5) and a CPU (2) for reading the program from the program memory to generate the ECC data based on the externally delivered user data and for sequential correction of errors contained in the externally supplied data using the generated ECC data.