Verifying method for ECC circuit of SRAM

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United States of America Patent

PATENT NO 11579969
APP PUB NO 20220283897A1
SERIAL NO

17336818

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Abstract

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A verifying method for an error checking and correcting (ECC) circuit of a static random-access memory (SRAM) is provided. The SRAM comprises a storage unit, an ECC circuit and a checking circuit. The ECC circuit receives an original data and an output first data. The checking circuit obtains a second data according to an error-injecting mask. The checking circuit performs a bit operation on the first data and the second data to obtain a third data. The checking circuit writes the third data into a test target area of the storage unit and the written data as a fourth data. The checking circuit reads the fourth data from the test target area. The ECC circuit obtains a fifth data and an error message according to the fourth data. The checking circuit obtains the bit error detection result according to the error message and the second data.

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Patent Owner(s)

  • REALTEK SEMICONDUCTOR CORP.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cai, Jia-Jia Hsinchu, TW 7 16
Chen, Bin Hsinchu, TW 374 1939
Qiu, Dong Hsinchu, TW 19 21
Yang, Zhi-Qiang Hsinchu, TW 18 121

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