LOW OVERHEAD ERROR CORRECTING CODE PROTECTION FOR STORED INFORMATION

摘要

Embodiments of an invention for low overhead error-correcting-code protection for stored information are described are disclosed. In one embodiment, an apparatus includes a data storage structure, a first check value storage structure, a second check value storage structure, and check value generation hardware. The data storage structure is to store a plurality of first data values. The first check value storage structure is to store a plurality of first check values. The second check value storage structure is to store a plurality of second check values. The check value generation hardware is to generate the first check values and the second check values. The first check values provide a first level of error protection for the first data values and the second check values provide a second level of error protection for a plurality of second data values. Each of the plurality of first data value has a first data width, and each of the plurality of second data values has a second data width, the second data width being greater than the first data width. Each of the second data values is a concatenation of one of the first data values and at least another of the first data values.