Line power failure scheme for a gaming device

摘要

A power failure scheme for a gaming device in which, upon the detection of a failure of the line power, particular processing operations are completed before power is completely lost. A regulated D.C. power supply coupled to the line power generates an interrupt having the highest priority upon detecting a failure of the line power. The main processor of the gaming device is responsive to a power fail interrupt to complete any access to a safe memory which may have been on-going at the time the interrupt was generated or to complete any state transition which was on-going at the time the interrupt was generated.