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The number of control units and the complexity of electronic networks are continuously increasing. Distributed functions require seamless integration and higher levels of safety and fault tolerance.The time-triggered communication protocol TTP® has been designed to address these requirements and to reduce the complexity of distributed fault-tolerant architectures.

TTP is used in commercial applications since 2002. It enables reliable distributed computing and networking for modern vehicle systems at lower lifecycle costs. This modular control system platform technology supports efficient system reconfiguration, upgrades and growth.

SAE International has released the SAE AS6003 (TTP) standard (see SAE Standards) that simplifies the design of advanced integrated systems using deterministic time-triggered communication. TTP offers at least an order of magnitude increase in communication bandwidth compared to ARINC 429, MIL-1553 and CAN. Beyond its enhanced deterministic communication capability, TTP provides distributed platform services which simplify design of advanced integrated systems, thus reducing software and system lifecycle costs for time- and safety-critical applications.

time triggered protocol lines

Mature Tools and Standard Components

By using a highly efficient set of tools, chip IP, equipment, and software components, development time can be reduced considerably. TTP has been employed and proven in demanding aerospace programs. Test equipment is available, which also enables fault injection.




"TTP is a breakthrough data bus that lessens the complexity caused by the ever-increasing number of functions in event-triggered systems."

Vijay Shankar Murthy Research Analyst, Frost & Sullivan
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