EPM having an improvement in non-volatile storage of accounting data
作者： Nanette Brown
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摘要: An electronic postage meter has two non-volatile memory devices, each of a different technology, CMOS battery-backed RAM and E 2 PROM. The PROM technology allows limited number rewrites. In order to provide real-time accounting in such over the life meter, trip data counter is stored circular store addition separate account other data, including printwheel setting information. used for calculations register data. updated at predetermined intervals using if necessary recovery.
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