AUXILIARY RAM BOARD APPARATUS HAVING A BATTERY BACK-UP FUNCTION

摘要

PURPOSE: An auxiliary RAM board apparatus having a battery back-up function is provided, which manages the change of a user data. CONSTITUTION: The auxiliary RAM board apparatus having a battery back-up function comprises: a control board for connecting a ROM (220) for storing a control program and a user data to a control unit (210) for controlling an entire operation of a system according to the control program and the user data using a control bus (230), and a data bus (240) and an address bus (260); and an auxiliary RAM board (230) including a RAM (232) for temporarily storing data and a battery back-up unit (234) for providing a power for preventing a loss of data stored in the RAM (232) to the RAM (232) when the power is not provided. Thereby, it is possible to provide the convenience of an operator and easily embody the change of the user data.