Reduced uncorrectable memory errors

摘要

Uncorrectable memory errors may be reduced by determining a logical array address for a set of memory arrays and transforming the logical array address to at least two unique array addresses based, at least in part, on logical locations of at least two memory arrays within the set of memory arrays. The at least two memory arrays are then accessed using the at least two unique array addresses, respectively.

主权项

1. A method to reduce uncorrectable memory errors comprising:
determining a logical array address for a set of memory arrays; transforming the logical array address to at least two unique array addresses based, at least in part, on a logical location of at least two memory arrays within the set of memory arrays, wherein transforming the logical address comprises at least one of:
rotating the logical array address by a number of locations based on the logical location;rotating upper lines of the logical array address by a first multiple and rotating lower lines of the logical array address by a second multiple, different than the first multiple; oradding a multiple of the logical location to the logical array address and discarding any additional upper bits; and accessing the at least two memory arrays using the at least two unique array addresses, respectively; wherein said transforming reduces uncorrectable errors in error correction codewords comprising data from the set of memory arrays.