| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the number of pins of a LSI element which connect nodes in a multiprocessor system that has plural nodes and makes an instruction correspond to data by an ID number. SOLUTION: The ID number is composed of a node number that is uniquely determined in this system and a sub ID number that is uniquely determined at each node. When an instruction is issued, the ID number of the instruction issuing source is stored in the node number of the ID number, and the ID number of a data transfer destination is stored in an ID number that is added to data. A crossbar switch for connecting nodes is provided with a node number interchanging means. The crossbar, if the data has a read request transfer mode, does not interchange the node number of ID number of the data, if the data has a write request transfer mode, interchanges the node number of ID number of the data with a data transfer source node number, and then makes the instruction correspond to the data using an ID number comparison circuit in the node.</p> |
