Patent ID: 7849279

Claim:
A method for updating together a plurality of data areas contained in a non-volatile memory of a single electronic component, the electronic component also including a volatile memory and a non-volatile backup memory comprising for each data area: first means for referencing data; second means for backing up information related to the data; wherein the method includes the following steps: a referencing step in which a reference is attributed to a data area in the volatile memory; a first copying step in which the data area and information related to the data used to characterize the data area are copied from the non-volatile memory to the volatile memory; a second copying step in which the entire content of the volatile backup memory is copied into the non-volatile backup memory; an updating step in which the content of the data area stored in the non-volatile memory of the electronic component is updated; if there is an other data area to update together, return to the referencing step in which a next data area is referenced; if there is no other data area to be updated together, the non-volatile backup memory is disabled.