Time Triggered Protocol (TTP)

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 / SAE Aerospace Standards Newsletter) 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 ARINC429, MIL-1553 and CAN. Beyond its enhanced deterministic communication capability, TTP provides distributed platform services which simplify design of advanced integrated system, thus reducing software and system lifecycle costs for time- and safety-critical applications.

Mature Tools and Standard Components

TTTech's TTP based solutions facilitate the design of high-integrity systems with deterministic behavior. By using a highly efficient set of tools and hardware and software components, development time can be reduced considerably. TTP has been employed and proven in demanding aerospace programs. Interfaces with 3rd party model-based development tools and customizable testing equipment are available.

TTP Controllers

TTP controller chips are commercially obtainable since 1998 and can be sourced from austriamicrosystems and ON Semiconductor. TTP chip IP can be used for system-on-chip (SoC) FPGA designs of various suppliers as well.

More information on TTP can be found at TTA-Group website.

Supporting Statement

"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