Microcontroller device and method
AssigneeSTMicroelectronics International N.V.
InventorJawad Benhammadi
Life of this patent
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Abstract
The present description concerns a microcontroller comprising a memory, a block for calculating an error correction code of this memory, a first register, and a first bit which, when it has a first value and the first register comprises a second value, causes the prohibiting of the modification of the content of the first register until a given sequence is written into a second register of the microcontroller.
Claims20
A microcontroller comprising:
- a memory;
- a calculation block configured to calculate an error correction code of the memory;
- a first register;
- and
- a first bit which, in response to the first bit having a first value and the first register having a second value, prohibits modification of a content of the first register until a given sequence is written into a second register of the microcontroller.
A method of operating a microcontroller comprising a memory, a calculation block for calculating an error correction code of the memory, a first register, and a second register, the method comprising:
- in response to a first bit being set to a first value and the first register having a second value, prohibiting a modification of a content of the first register until a given sequence is written into the second register of the microcontroller.
Dependencies are inferred from the claim text.