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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