Non-volatile memory usage

Details Non-volatile memory usage Non-volatile memory usage

G - Physics

11

C

352/36

G11C 16/02 (2006.01) G06K 15/12 (2006.01) G11C 7/00 (2006.01) G11C 29/00 (2006.01)

Patent

CA 2021274

A page printer including a print engine (15) and a controller (11) which includes a non-volatile memory (16) having an EEPROM (17) and a chip RAM (18). A microprocessor (12) under program control manages the placement of data in the EEPROM (17) of the non-volatile memory (16). The EEPROM (17) and the associated chip RAM (18) are structured to have a control block (31) and a data storage portion (32-39). The control block (31) includes pointers (41-47) indicating the locations in the non-volatile memory where data is stored. If a data location becomes faulty, the value of the pointer to that location is changed so that the pointer points to a previously unused portion of the non-volatile memory.

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