Programming read-only memory for IC engine control microprocessor - uses microprocessor random-access memory for temporary storage of received programming data subsequently transferred to read-only memory

摘要

A programming device (11) is used to supply bit serial programming data to the microprocessor (13). The programming data allow a program module to be loaded in the random access microprocessor memory (19) and is subsequently processed to load it in the read-only memory (17). Pref. the program module is started by a signal from the programming device, with the contents of the read-only memory verified after loading the program module. ADVANTAGE - Reduced programming time.