1. A reconfigurable array control method, the method comprising: computing a programmed threshold time with regard to an operation to be executed in a reconfigurable array; comparing a current cycle time of the operation with the programmed threshold time when an interrupt request occurs during execution of the operation by the reconfigurable array; discarding the interrupt request when the current cycle time is greater than the programmed threshold time; and processing the interrupt request when the current cycle time is less than or equal to the programmed threshold time, wherein the processing the interrupt request comprises: suspending an operation of processing units other than select processing units of the reconfigurable array; storing register values of at least one register for the select processing units of the reconfigurable array to be used for handling the interrupt request; executing an interrupt service with the select processing units in response to the interrupt request; restoring the register values of the at least one register for the select processing units; and resuming the operation of the processing units other than the select processing units of the reconfigurable array after restoring the register values of the at least one register.