ABSTRACT
This chapter begins with the fundamentals of time-triggered protocol (TTP) communication and basic Line Replaceable Units (LRU) structure and continues with a more detailed presentation of available safety, redundancy, and communication services. It also provides a concise description of application development for leveraging key strengths of time-triggered architecture (TTA). The chapter discusses the reasons for straightforward integration, composability, interoperability, and scalability of TTP-based systems and gives a future outlook for this communication technology. TTP implements a time division multiple access (TDMA) scheme that avoids collisions on the bus; therefore, communication is organized into TDMA rounds of the same length. TTP has been developed over the last 25 years as a fully distributed and strictly deterministic safety-critical computing and networking platform. The systems based on the TTA paradigm anticipate resource demand in advance and provide just-in-time access to resources.
