Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1997 | Invention patented by Daniel C. Robbins on March 26th, 1997. Abstract: A device driver initiates a DMA transfer and repeatedly reads a semaphore from a specified location in system memory. Upon completion of a DMA transfer, a DMA controller writes a semaphore containing status information to the specified location in system memory, informing the device driver that the DMA transfer is completed. A cache memory for the specified location in system memory is provided to further reduce the latency between DMA transfers. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
