| 摘要 |
<p>A network interface controller (14) controls communication between a host system (10) and a network transceiver (20) coupled to a network comprises a memory (15) outside of the host address space in which receive and transmit buffers are managed, host interface logic emulating memory mapped registers in the host address space, for transferring data between the host address space and the buffer memory (15), and network interface logic coupled with the network transceiver (20), for transferring data between the buffers in the buffer memory (15) and the network transceiver (20). The buffer memory (15) includes a transmit descriptor ring buffer, transmit data buffer, transfer descriptor buffer, and receive ring buffer all managed by operations transparent to the host.</p> |
