Circuit arrangement and device with combinatorial circuit and memory circuit, system and method

A device, comprising:

• a combinatorial circuit configured to:
• receive a first bit signal containing first data bits and at least one first check bit, and
• output a second bit signal containing second data bits and at least one second check bit,
• during error-free operation:
• map a codeword of a first error code present at the first data bits and the at least one first check bit being a codeword of a first error code to a codeword of a second error code at the second data bits and at the at least one second check bit, and
• map a first word present at the first data bits and the at least one first check bit to a second word at the second data bits and the at least one second check bit, wherein the first word is not the codeword of the first error code, and the second word is not the codeword of the second error code;
• and
• an arrangement of memory cells configured to store the second bit signal, and configured to correct at least 1-bit errors occurring during storage.

A method, comprising:

• processing a first bit signal containing first data bits and at least one first check bit in order to generate a second bit signal containing second data bits and at least one second check bit, processing comprising, during error-free processing:
• mapping a codeword of a first error code present at the first data bits and the at least one first check bit being a codeword of a first error code to a codeword of a second error code at the second data bits and at the at least one second check bit, and
• mapping a first word present at the first data bits and the at least one first check bit to a second word at the second data bits and at the at least one second check bit, wherein the first word is not the codeword of the first error code, and the second word is not the codeword of the second error code;
• storing the second bit signal in a memory;
• and
• correcting at least 1-bit errors occurring while the second bit signal is stored in the memory.