Sughrue, Mion, Zinn, Macpeak & Seas, PLLC
Eeprom write device
 An EEPROM write device includes an ECU 2A having a microcomputer 3A including a CPU 30A, an EEPROM 31 and a boot program 32A, and an external write device 1A which communicates serial signals SE and SR with the CPU, in which the ECU includes write control means associated with the CPU, the write control means generates a write enable signal to the CPU in response to a receive start of the serial signal from the external write device, and the CPU switches from a normal operation mode to a write mode to the EEPROM in response to the write enable signal, to thereby rewrite the contents of the EEPROM. 
Mitsubishi Denki Kabushiki Kaisha
G
G11C
inventional
Masahide
Fujita