Patent ID: 6065071
Filing Date: 2000-05-16
Classification: G06F

Abstract:
An input/output device adapted to be used in a computer system comprisinga direct memory access (DMA) circuit for transferring DMA-transferable data from an application program to the input/output device without manipulation by an operating system;a circuit for detecting DMA-transferable data transferred by the (DMA) circuit which the input/output device to which the input/output device is unable to respond;a circuit for storing the DMA-transferable data transferred to the input/output device to which the input/output device is unable to respond;an interrupt generating circuit responsive to a determination that the input/output device is unable to respond to DMA-transferable data;a signal generating circuit responsive to a determination that the input/output device is unable to respond to DMA-transferable data; anda flow control circuit for receiving DMA-transferable data being transferred to the detecting circuit, the flow control circuit responding to a signal generated when the input/output device is unable to respond by halting the flow of DMA-transferable data to the input/output device.