| 摘要 |
PURPOSE:To reduce the load of the host side and make the response quick to perform the transmission control of packets efficiently, by executing access of a transmission line, generation of packets, buffering of data, retransmission control, etc. on the level of interface. CONSTITUTION:Terminal equipments A-N as a main system are connected to a data transmission line L consisting of a coaxial cable through transmission interfaces I/F and transmit and receive various kinds of data optionally to and from one another. The transmission interface I/F consists of a transmission control circuit 10, a reception control circuit 11, and transmission/reception data transfer control circuit 12. The circuit 10 transmits transmission data and response packets onto the transmission line, and the circuit 11 discriminates a packet format of data received from the transmission line L and generates a response packet. The circuit 12 controls the transfer of transmission/reception data between circuits 11 and 10 and the terminal equipment. |
