Patent ID: 6134187
Filing Date: 2000-10-17
Classification: G04G

Abstract:
A real-time clock device comprising:a non-volatile memory includinga timepiece information storing area containing timepiece information including time counter information used for time management of a computer system and used for specifying the year, month, date, hour, minute and second of the present time, and alarm time information for specifying the hour, minute and second of the time at which an alarm is generated is set, andan environment setting information storing area containing environment setting information and a month/date storing area for setting alarm month and date information used for specifying the month and date on which an alarm is generated, wherein said month/date storing area is assigned to an address different from an address of the timepiece information storing area; anda section for comparing the alarm generating month, date, hour, minute and second determined based on the alarm month and date information in said environment setting information storing area and the alarm time information in said timepiece information storing area with the time counter information in said timepiece information storing area and generating an alarm interrupt when the compared information items coincide with each other.