Method and apparatus for controlling a number of decoding iterations of a decoder based on a temperature of an integrated circuit that includes the decoder

A method comprising:

• using a first decoder, (i) performing a first number of decoding iterations, (ii) generating first data in response to performing each of the first number of decoding iterations, and (iii) generating second data after performing all of the first number of decoding iterations;
• using a second decoder, (i) performing a second number of decoding iterations, wherein each of the second number of decoding iterations is performed in response to the first decoder performing all of the first number of decoding iterations, and (ii) generating soft information based on one or more of input samples and the second data generated by the first decoder,
• using the first decoder, generating the first data based on one or more of (i) the soft information generated by the second decoder and (ii) the first data from one of the first number of decoding iterations;
• sensing a temperature of an integrated circuit comprising the first decoder and the second decoder;
• and
• controlling, based on the temperature of the integrated circuit, at least one of the first number of decoding iterations or the second number of decoding iterations.

A storage device comprising:

• a read circuit configured to
• read data stored on a storage medium, and
• generate input samples based on the data read from the storage medium;
• a first decoder configured to
• perform a first number of decoding iterations,
• generate first data in response to performing each of the first number of decoding iterations, and
• generate second data after performing all of the first number of decoding iterations;
• a second decoder configured to
• perform a second number of decoding iterations, wherein each of the second number of decoding iterations is performed in response to the first decoder performing all of the first number of decoding iterations, and
• generate soft information based on one or more of (i) the input samples and (ii) the second data generated by the first decoder,
• wherein the first decoder is configured to generate the first data based on one or more of (i) the soft information generated by the second decoder and (ii) the first data from one of the first number of decoding iterations, and
• wherein the first decoder and the second decoder are arranged in an integrated circuit;
• a sensor configured to sense a temperature of the integrated circuit;
• and
• a controller configured to control, based on the temperature of the integrated circuit sensed by the sensor, at least one of the first number of decoding iterations or the second number of decoding iterations.