Viterbi decoding apparatus using level information generator supporting different hardware configurations to generate level information to Viterbi decoder and related method thereof

An exemplary Viterbi decoding apparatus includes a Viterbi decoder and a level information generator. The Viterbi decoder is arranged for generating a first binary signal by decoding an input signal according to target level information. The level information generator is arranged to support a plurality of different hardware configurations each for level information generation, and operate in a target hardware configuration among the different hardware configurations to generate the target level information to the Viterbi decoder. An exemplary Viterbi decoding method includes: configuring a level information generator, arranged to support a plurality of different hardware configurations each for level information generation, to operate in a target hardware configuration among the different hardware configurations for generating target level information; and generating a first binary signal by performing Viterbi decoding upon an input signal according to the target level information generated from the level information generator.