Remote Teminal Modeling Of1553B Bus

1553B bus is a digital command-response type of data bus. It is allowed to usemulti-redundancy buses and fixed ranges of response time and message gap andother parameters are defined, so that the bus is highly reliable and can satisfy therequest of defense devices. It has been playing an important role in military bus fieldand been widely used up to now. Application of the bus has extended for civil use.Therefore, study of1553B bus is meaningful and important. On the other side, withthe progress of integrated circuit manufacturing technology, the feature size ofintegrated circuit is decreasing and the gate-level circuit size is increasing, so moreand more functions can be implemented on one chip. Modern SoC products havewide application, so to connect SoC products and1553B bus is very useful.This paper designs the remote terminal of1553B bus in the1553B bus system andSoC connection model. Its architecture and every composing module are described,including modules’ functions and processing procedure. Next this paper makesseveral optimizing designs for the remote terminal. Then simulation is done,including the demanded transfer types, error processing and the optimization. Theresults show that the designed remote terminal can fulfill the requested transfer anderror process tasks and broadcast transfer is allowed. The simulation results ofoptimizing designs demonstrate that the remote terminal supports dual redundancybuses and allows illegal commands setting from outside and other functions. Theseextra designs increase the reliability and configurability of the remote terminal andmake the number of subsystems allowed maximum, and the feature that the state canbe transferred to subsystems enables more reliable transfer between remote terminaland subsystems. The designed remote terminal can implement the transfer betweensubsystems and terminals of1553B bus, so SoCs can be treated as subsystems andconnected to remote terminals and it lays a foundation for embedding SoC productsto1553B bus system.