發明名稱: [en] INTERFACE SYSTEM PROVIDING INTERFACES TO CENTRAL PROCESSING UNIT AND MODULAR PROCESSOR-CONTROLLERS FOR AN INPUT-OUTPUT SUBSYSTEM
申請人:BURROUGHS CORP (--)
IP Class 7 Digits:G06F13
摘要:[en]A sub-interface system within an Input-Output Subsystem of a digital data processing system. The interface subsystem comprises a Main System Interface of a central processing unit working with the distribution-control means of a Base Module housing a group of Line Control Processors (individual Intelligent I/O Interface units) dedicated to a specific peripheral device. The Main System Interface is designated as an IOT, or Input-Output Translator, and translates input-output instructions into proper form for delivery to a particular intelligent interface unit which can execute the instructions. The IOT provides a data link identifier to identify each particular data-transfer transaction and receives result information from the Line Control Processor and Base Module to keep the Main System informed of the status or completion of each individual data-transfer operation. The Input-Output Translator provides a selection of priority to be given to competing Line Control Processor requests for access to Main Memory and communicates with individual Line Control Processors in their control of data-transfer operations between various peripheral devices and the Main Memory of the System.