| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the need to be aware of the resetting of a microcomputer and worry about the setting of data, by comparing values in a RAM with values in an EEPROM as to error correction data and data of a predetermined kind in the case where the microcomputer is reset. SOLUTION: The EEPROM 32 and RAM 33 which are connected to the microcomputer 11 and exchange data with each other and a comparing circuit 34 compares the data in the EEPROM 32 with the corresponding data in the RAM 33. Then, when the microcomputer 11 is reset, the comparing circuit 34 compares one predetermined kind or more kinds of data if possible, sum check data, etc., in the RAM 33 and EEPROM 32 with each other. When the corresponding data match with each other, the erasure and initialization of the data in the RAM accompanying the resetting of the microcomputer 11 including other data, which are not compared are inhibited to enable them to use continuously as they are. |
