ERROR CORRECTION CODE UNIT, SELF-TEST METHOD AND ASSOCIATED CONTROLLER APPLIED TO FLASH MEMORY DEVICE FOR GENERATING SOFT INFORMATION

摘要

A self-test method of a flash memory device includes: generating input data; encoding the input data to generate an error correction code; utilizing the input data and the error correction code to simulate to read a page of a flash memory of the flash memory device to generate soft information; and decoding the soft information to generate a decoding result.

主权项

1. An error correction code (ECC) unit of a flash memory device, comprising:
an encoder, for receiving input data and encoding the received input data to generate an error correction code; a self-test circuit, coupled to the encoder, the self-test circuit arranged for generating the input data to the encoder, receiving the error correction code from the encoder, and utilizing the input data and the error correction code to simulate to read a page of a flash memory of the flash memory device to generate soft information; and a decoder, coupled to the self-test circuit, the decoder arranged for receiving the soft information and decoding the soft information to generate a decoding result.