Circuit arrangement with non-volatile memory module and...

Details Circuit arrangement with non-volatile memory module and... Circuit arrangement with non-volatile memory module and...

2007-06-19

2007-06-19

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

Reexamination Certificate

active

10536302

ABSTRACT:
In order to further develop a circuit arrangement (100) for electronic data communication, comprising—at least a non-volatile memory module (10) for storing data, and—at least an interface logic (20) associated with the memory module (10)—for addressing the memory module (10) and—for writing data to the memory module (10) or—for reading data from the memory module (10), together with a related method for registering light attacks on the non-volatile memory module (10), in such a way that, firstly, the light attack is recognized immediately and reliably regardless of whether an access, in particular a read access, to the memory module (10) is taking place or not and, secondly, the entire address space of the memory module (10) is covered as uniformly as possible in this regard, it is proposed that at least a monitoring arrangement (22) provided for monitoring the memory module (10) is associated with the interface logic (20), by means of which monitoring arrangement (22) an irradiation of the memory module (10) with at least a light source [so-called “light attack”] can be detected and/or registered and/or signaled in a test mode (T) in which no write or read access to the memory module (10) takes place.

REFERENCES:
patent: 5053992 (1991-10-01), Gilberg et al.
patent: 5465349 (1995-11-01), Geronimi et al.
patent: 2002/0130248 (2002-09-01), Bretschneider et al.

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