Method and apparatus of detecting error of access wait signal

Details Method and apparatus of detecting error of access wait signal Method and apparatus of detecting error of access wait signal

2004-06-04

2008-03-11

McCarthy, Christopher (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C710S018000, C710S118000, C710S036000, C710S125000, C714S042000, C714S044000

Reexamination Certificate

active

07343525

ABSTRACT:
A method and an apparatus for detecting an error of an access wait signal are disclosed. The method comprises the steps of accessing the input/output (I/O) device according to an I/O control command of the electronic device to access the I/O device; and returning to an IDLE state after the electronic device generates error information representing an error of the access wait signal or performs access to the I/O device according to a transition of the access wait signal to a state for determining a delay of access to the I/O device. Therefore, with the method, even when the access wait signal transmitted from the I/O device to the electronic device erroneously maintains a signal state for delaying access to the I/O device, the electronic device can be released automatically from an access delayed state after a predetermined time period.

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