| 摘要 |
PURPOSE:To reduce a load on a processing control unit by enabling a multiprocessor type data processing unit to operate by setting operation parameters during the fetching and accessing of data to be processed at a time. CONSTITUTION:Memory unit addresses during data transfer between processing units PU1-PUn, and a memory unit 2 are transferred from a processing control unit 4 prior to the start of processing and then set it an address register 14. Address data during access to the memory unit 2 are read out of the address register 14 corresponding to processing units PU1-PUn permitted to access the memory unit 2, and then sent out to the memory unit 2. The data of a register 16 are used to decide on which data in a couple of registers of the address register 14 is used for the access. Becuase of this control structure, access control parameters to the memory unit 2 are processed at a time by being specified in the register 16. |
