Method and apparatus for protection of data utilizing CRC

Details Method and apparatus for protection of data utilizing CRC Method and apparatus for protection of data utilizing CRC

2005-05-31

2005-05-31

Torres, Joseph D. (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S758000

Reexamination Certificate

active

06901551

ABSTRACT:
A dedicated hardware CRC computation engine is provided to assure the integrity of data transferred between the system memory and storage devices. The CRC computation engine provides CRC calculation “on-the-fly” for the protection of data transferred to and from the system memory without software overhead. The computation of CRC values and optional checking against previously calculated CRC values is selected through the use of an address-mapping scheme. This CRC protection scheme requires a small amount of initial software overhead to allocate the data, CRC value, and CRC error regions of the system memory. After the CRC protection scheme is initialized, all CRC operations are transparent to the executing software.

REFERENCES:
patent: 4387441 (1983-06-01), Kocol et al.
patent: 5355522 (1994-10-01), Demange
patent: 5719885 (1998-02-01), Ofer et al.
patent: 5734815 (1998-03-01), Schatzberg
patent: 6061822 (2000-05-01), Meyer
patent: 6185207 (2001-02-01), LaBerge et al.
patent: 6304992 (2001-10-01), Cypher
patent: 6516386 (2003-02-01), Pang et al.
patent: 6519733 (2003-02-01), Har et al.
patent: 6539503 (2003-03-01), Walker
patent: 6553511 (2003-04-01), DeKoning et al.
patent: 6629288 (2003-09-01), Bernath et al.
patent: 2003/0093751 (2003-05-01), Hohl
patent: 2003/0115417 (2003-06-01), Corrigan
Error Detection & Correction Options for Data Services in B-ISDN—Author(s)—Damodaram et al. 1990 IEEE, p. 1751-1757.
Fast CRC Calculation—Author(s)—Glaise et al. 1993 IEEE, p. 602-605.

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