| 摘要 |
PURPOSE: To improve data management of a buffer storage system. CONSTITUTION: Transmission and reception data are stored in a buffer area normalized by first and second memories on a network. The buffer area is instructed by multiple descriptor ring stored in the memories. In one situation, the two memories are present on different buses 143 connected with a common bus 147 including a processor 124. The processor 124 communicates with the memories by using a handshake protocol. In another situation, the received data incoming to this system are distributed among the multiple descriptor ring. Moreover, in another situation, a frame is divided among the multiple descriptor ring dependently of characteristic codes held by the frame in a frame control field. Synchronization between the header of the frame and data is maintained by the frame number of each descriptor. In another situation, the block of a reception path at the time of the generation of the blocked receiving descriptor ring is prevented.
|
