MULTIPROCESSOR SYSTEM

PROBLEM TO BE SOLVED: To provide a multiprocessor system capable of increasing the processing speed of the whole system to a high speed approaching the processing speed of hardware by suppressing a wasteful use of a data bus. SOLUTION: The multiprocessor system is constituted so that a system control processor is connected to a program memory and connected to a main memory in common together with a plurality of M units through the data bus. Each of the plurality of M units comprises a bus I/F 202 based on a DMAC for reading out data from the main memory through a data input port 201 and outputting a final processing result from a data output port 204 to the main memory and a plurality of P units 211, 212 or 221, 222 for independently executing prescribed processing for input data in each unit and outputting a finally obtained processing result to the bus I/F 202. COPYRIGHT: (C)2007,JPO&INPIT