DATA TRANSMISSION SYSTEM

摘要

A system for data communication among a plurality of digital processors via a data bus wherein any one of the processors may act as a master station to control the data bus to exchange data with another processor and can then transfer control of the data bus to another processor requiring control of the bus, so that the other processor can exchange data via the bus. If a master station signal fails to appear on the bus for more than a predetermined period of time, any of the processors may take control in accordance with a predetermined priority system.