Abnormal status detecting method of interrupt pins

Details Abnormal status detecting method of interrupt pins Abnormal status detecting method of interrupt pins

2009-11-09

2011-12-06

Knoll, Clifford (Department: 2111)

Electrical computers and digital data processing systems: input/

Interrupt processing

Programmable interrupt processing

C714S005100

Reexamination Certificate

active

08074006

ABSTRACT:
An abnormal status detecting method of interrupt pins is provided. In the invention, an advanced configuration and power interface (ACPI) table is looked up for obtaining an interrupt status bit of each interrupt pin in a computer system. Afterwards, the interrupt status bit is continuously checked whether it is maintained at a specific value during a fixed time. When the interrupt status bit of one of the interrupt pins is maintained at the specific value during the fixed time, the interrupt pin is determined to be abnormal.

REFERENCES:
patent: 5555420 (1996-09-01), Sarangdhar et al.
patent: 7562173 (2009-07-01), De et al.
patent: 2005/0022059 (2005-01-01), Wei

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