CELL EXCHANGE DEVICE, ADDRESS GENERATION DEVICE AND CELL INFORMATION MANAGING METHOD

摘要

PROBLEM TO BE SOLVED: To simultaneously execute an input operation and an output operation and to speed up operation rate by simultaneously inputting address information and shifting the storage content of an information storage means so that exchange information is always inputted to the specified information storage means. SOLUTION: In the input operation of an address generation device, unit controllers 1200-1 to 1200-k and a retrieval circuit 2000 cooperate and retrieve an address generation unit which is 'idle' (state where valid information is not stored) and which corresponds to the oldest cell from k-pieces of address generation units, for example. The value of an address pointer, which only the retrieved address generation unit holds, is outputted to an address pointer output circuit 3000. The address generation unit after the retrieved address generation unit executes the shift operation.