DEVICE FOR WRITING DATA TO EEPROM

摘要

PURPOSE:To rewrite program data of an EEPROM with new program data without using complicated circuits for rewrite. CONSTITUTION:An equipment is switched to a program rewrite mode by an operation part 5 and a control part 2 tentatively writes the new program data of an input device 6 to a RAM 4. When the data are written in the RAM, a transfer instruction generation part 1 outputs an instruction for writing the data of the RAM to the EEPROM 3 and the control part writes the data of the RAM to the EEPROM by the instruction and when it is completed, returns from the program switching mode to a normal operation mode.