A computer system includes a chipset which controls the gate-A20 signal and the CPU RESET signal in a conventional manner in response to commands from a system microprocessor. The computer system further includes a peripheral controller which is programmed to generate an alternative gate-A20 signal and...http://www.google.es/patents/US5574943?utm_source=gb-gplus-sharePatente US5574943 - Gate-A20 and CPU reset circuit for mircroprocessor-based computer system
Gate-A20 and CPU reset circuit for mircroprocessor-based computer system
