ERROR DETECTION IN STORED DATA VALUES

摘要

An apparatus has a plurality of storage units. A parity generator is configured to generate a parity value in dependence on the respective values stored in the plurality of storage units. The parity generator is configured such that determination of the parity value is independent of a read access to the data stored the plurality of storage units. A detector is configured to detect a change in value of the parity value.

主权项

1. Apparatus comprising:
a plurality of storage units configured to receive data, wherein the plurality of storage units are configured to output the data in response to a read access; and a parity generator associated with said plurality of storage units, wherein said parity generator is configured to: receive at a plurality of inputs a respective value from each of said plurality of storage units; determine a parity value from said plurality of inputs, wherein determination of the parity value is independent of the read access to the data stored in said plurality of storage units; and output said parity value, said apparatus further comprising: a detector configured to detect a change in said parity value.