Method for determining an interruption source

Details Method for determining an interruption source Method for determining an interruption source

2006-03-21

2006-03-21

Dang, Khanh (Department: 2111)

Electrical computers and digital data processing systems: input/

Interrupt processing

C702S119000

Reexamination Certificate

active

07016997

ABSTRACT:
A testing method to discern an original source with respect to the interruption, suitable for use in a computer system is provided. The computer system includes an integrated drive electronics (IDE) bus and a peripheral component interconnect (PCI) bus. The IDE bus is connected to a testing IDE device and the standard IDE device. The PCI bus includes a plurality of input/output (I/O) ports. First, one of the I/O ports is set up with a testing flag and a command is issued to the testing IDE device. After then, the interruption sent from the testing IDE device or the standard IDE device is received. Next, it is checked whether or not the testing flag is set. If it is, then it can be determined that the interruption is coming from the testing IDE device. The present invention can discern the interruption, which is coming from which one of the correct source, under the mode or the real mode, so as to be helpful for testing.

REFERENCES:
patent: 5644705 (1997-07-01), Stanley
patent: 6076180 (2000-06-01), Meyer
patent: 6571204 (2003-05-01), Meyer
patent: 6571360 (2003-05-01), Drogichen et al.

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