Memory with error correction function and an error correction method

A memory with error correction function, wherein the memory comprises a data array, an ECC array, a flag bit array, an ECC encoding module, an ECC decoding module, a flag bit generation module and a flag bit detection module;

• wherein:
• the data array is configured to store data;
• the flag bit generation module is configured, when data is being stored, to generate a flag bit and an encode enable signal in response to the one or more external control signals that affect the length of the data, the flag bit being stored in the flag bit array, and the encode enable signal being used to control the operation of the ECC encoding module;
• the ECC encoding module is configured, when the encode enable signal is enabled, to receive the data and encode the data according to the ECC algorithm preset therein to generate parity bits;
• the ECC array is configured to store the generated parity bits;
• when data is being read from the data array, the flag bit detection module is configured to detect the flag bit, and in response to the flag bit, to generate a decode enable signal for controlling the operation of the ECC decoding module;
• and
• the ECC decoding module is configured, when the decode enable signal is enabled, to detect and correct erroneous data using the parity bits from the ECC array and the data from the data array, and to output the corrected data;
• wherein the flag bit indicates whether the length of the data is equal or not equal to the data length required by the preset ECC algorithm.