ABSTRACT
Time-Triggered CAN (TTCAN) uses the concept of cyclic communication, divided into slots to implement time-triggered behavior. This chapter discusses the key properties of the TTCAN protocol, where the levels of TTCAN are taken into consideration. TTCAN specifies a serial communication protocol that supports distributed real-time control and multiplexing for use within road vehicles. TTCAN supports two different methods of basic cycle synchronization, namely, time-triggered and event-synchronized. The chapter also discusses the structure and the relevance of the reference message and the achieved synchronization quality for both levels of TTCAN. The TTCAN standard specifies three main configuration interfaces, where each of the interfaces is divided into subinterfaces that allow the configuration of protocol settings. The application interfaces provide information about the current state of the node to the application. FTT-CAN distinguishes two types of traffic, namely, synchronous and asynchronous traffic. The synchronous traffic consists of periodic time-triggered messages.
