Device for the superposition of successive data transfer phases between several units of a data processing system

摘要

the device is composed of a set of logical control unit 12 distributed in each in each unit.the control logic is equipped with a priority circuit receiving input on a pc12 rqil eligible local applications of the unit itself and on the other input of external requests rqkissued by other units so as to allow the control of bus transmission from each unit to the circuit unit when the priority of the highest priority is to be amongthe other circuit units and a local application eligibility t13 to elect them according to the state of occupation of data lines of the bus transmission.