Patent ID: 8694862
Filing Date: 2014-04-08
Classification: G06F,H03M

Abstract:
1. A data processing apparatus comprising: error code generation circuitry configured to generate an error code associated with a received data value, said error code being constructed such that a bit change in said received data value can be known about by reference to said error code; a data store in which stored data values are stored; an error code store in which associated error codes corresponding to said stored data values are stored; and error checking circuitry configured to perform a verification operation on a stored data value and an associated error code to determine if an error has occurred in at least one of said stored data value and said associated error code during storage, wherein said received data value comprises at least one additional bit with respect to said stored data value and wherein said error checking circuitry is configured to reconstruct said at least one additional bit by reference to said stored data value and said associated error code.