| 摘要 |
PROBLEM TO BE SOLVED: To insure the data of synchronous communication without interrupting any communication by storing data, which are transmitted by a transmission node, in the prescribed address information of a buffer in the state of enabling mapping of time information and address information. SOLUTION: Each node (communication equipment) consisting a network is provided with an LSI 5 for communication equipped with a clock generating circuit 6 for counting bus time, a CPU 1 and a buffer memory 2 for data insurance or the like. In this case, the transmission node transmits data through the protocol of synchronizing system and stores these data in the buffer 2. When the reception node can not normally receive them, the time information at such a time is mapped into the address information and returned to the transmission node through the protocol of asynchronous system and the retransmission of data is requested. Based on this address information, the transmission node reads data out of the buffer 2 and retransmits the read data through the protocol of asynchronous system. |
