COMMUNICATION EQUIPMENT

摘要

PURPOSE:To attain reassembling of a message without causing abort of a reception cell due to a deficient memory area by utilizing the end of a data readout for a succeeding write cycle every time the data readout of one memory block is finished. CONSTITUTION:A main trunk LAN is constituted by a transmission line 100 and plural nodes (communication equipments) 200A-200F connecting in a ring with the transmission line 100. In the readout of a cell data as to one message, a cell data is read out based on an address read from a readout address queue in the first cycle and a cell data is read based on a succeeding address pointer read in the preceding cycle from a buffer memory for succeeding cycles, and an address representing a memory block from which the cell data is read is released for write operation of the cell data received succeedingly as an idle address. Thus, the message is reassembled without causing abort of the reception cell.