Method of resetting a system

Details Method of resetting a system Method of resetting a system

1998-06-19

2000-06-27

Heckler, Thomas M.

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

G06F 124

Patent

active

060818891

ABSTRACT:
A method of resetting a system enables an EEPROM writing to be implemented to the end normally, and it is capable of avoiding runaway of the whole system, even if reset signal is received because of a power failure while the EEPROM is in the writing state. In the system which has a CPU, an EEPROM whole circuit, an oscillation circuit, and a reset control circuit, when a system reset occurs, the method includes detecting a writing operation of the EEPROM cell, in cases where the EEPROM cell is implementing the writing operation, holding the reset of the EEPROM cell until the writing operation of the EEPROM cell is terminated, thus implementing the reset of at least the CPU.

REFERENCES:
patent: 5923838 (1999-07-01), Hongo
patent: 5925139 (1999-07-01), Yamada et al.

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