
274 Time-Triggered Communication
SAFEbus. The BRAIN also encompasses hardware assistance mechanisms for this
exchange that does not need software interaction (see Section 12.4.1).
12.2 Protocol Mechanisms and Services
12.2.1 High-Integrity Data Propagation
The core service of the BRAIN is the fault-tolerant, high-integrity, high-availability
broadcast distribution of data. This mechanism provides the foundation for all of
the higher-level protocol services. Abstractly, the BRAIN data propagation scheme
is very simple and can be viewed independently of the higher-level protocol ser-
vices. These techniques may also be applicable to other time-triggered ...