Microcomputer with nonvolatile memory protected against false erasing or writing
AssigneesRenesas Technology Corp., Mitsubishi Electric System LSI Design Corporation
InventorShuzo Fujioka
Life of this patent
Estimating the term…
Abstract
A microcomputer includes a nonvolatile memory for storing contents that can be erased from and written to the nonvolatile memory electrically when an erasing/writing voltage is supplied to the nonvolatile memory, and a processor for executing a program stored in the nonvolatile memory. The microcomputer also includes a setting element for setting a plurality of conditions for erasing contents from or writing contents into the nonvolatile memory, and an erasing/writing voltage supply enabler for enabling the erasing/writing voltage to be supplied to the nonvolatile memory when all of the plurality of conditions are satisfied.
Claims8
A microcomputer comprising:
- a nonvolatile memory for storing contents that can be erased from and written to the nonvolatile memory electrically when an erasing/writing voltage is supplied to the nonvolatile memory;
- a processor for executing a program stored in the nonvolatile memory;
- a setting element for setting a plurality of conditions for erasing contents from or writing contents into the nonvolatile memory;
- and
- an erasing/writing voltage supply enabler for enabling the erasing/writing voltage to be supplied to the nonvolatile memory when all of the plurality of conditions are satisfied.
Dependencies are inferred from the claim text.