Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2007-02-13
2007-02-13
Beausoliel, Robert W. (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
Reexamination Certificate
active
10446492
ABSTRACT:
The invention relates to a method for monitoring a microcontroller having at least one normal operating state and one state with a reduced power consumption and to a circuit configuration for carrying out the method. The method enables the functionality of the microcontroller to be monitored even in the state with the reduced power consumption. The method includes steps of: during the normal operating state, receiving a status signal having pulses from the microcontroller and resetting the microcontroller if the pulses are not received within a predefined time pattern; and during the state with the reduced power consumption, transmitting a wakeup signal having a sequence of pulses to the microcontroller, and resetting the microcontroller if there is no confirmation by the microcontroller within a predefined time interval after a pulse of the wakeup signal.
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Infineon Technologies: “Fault Tolerant CAN-LDO”,TLE 6262 G, Final Data Sheet, version 2.01, dated Feb. 12, 2002, pp. 1-37.
Gerner Josef
Pihet Eric
Beausoliel Robert W.
Greenberg Laurence A.
Locher Ralph E.
Stemer Werner H.
Urick Matthew
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