Communication apparatus and communication method between a primary rate interface board and a packet system control board in an integrated information network packet interface system

摘要

The present communication apparatus and method are for performing stable communication between the PSCB and the PRIB in the IPIS system. The present apparatus allocates different logical addresses to the packet system control board and the primary rate interface board, A dual port memory used for transmitting / receiving data between the packet system control board and the primary rate interface board by assigning a read pointer, a write pointer and a queue and a region for a write pointer and a queue to the primary rate interface board,; When data is transmitted to the packet system control board, the transmission data is written to its own queue in the dual port memory, the write pointer is increased by the data length written in the queue, and when receiving data from the packet system control board, A primary rate interface board for reading the data stored in the queue of the packet system control board until the read pointer of the packet system control board and the write pointer of the packet system control board have the same value; When data is transmitted to the primary rate interface board, transmission data is written to its own queue in the dual port memory, its write pointer is increased by the data length written in the queue, and when receiving data from the primary rate interface board And a packet system control board for reading the data stored in the queue of the primary rate interface board until its read pointer and the write pointer of the primary rate interface board have the same value.