Abstract
I. INTRODUCTION
A. From Federated to Integrated Architectures
B. TTA as a vision of System Architecture
C. LTTA: why and what?
(page 3)
The LTT bus based on CbS was first proposed in [4] and studied for a single writer-reader pair and [19] proposes a variation of LTTA where some master-slave re-synchronization of clocks is performed.
In this paper we discuss the novel issues LTTA raises due to the artifacts caused by CbS communication
II. USE OF LTTA AND ARTIFACTS
Use for discrete control and supervision: Discrete systems such as finite state machines are generally not robust against duplication or loss of data.
(page 3 col 2)
III. TWO PROTOCOLS FOR LTTA
A. Back-Pressure LTTA
Elastic circuits were proposed in [10], [12], [9] as a semantic
preserving architecture in which Kahn Process Network
[13] type of execution is performed using bounded
buffers.
In our study, however, we cannot make direct use of elastic
circuits since the activation of nodes in elastic circuits is
triggered by tokens,
Figure 6 depicts net Nji associated to each directed link
j ! i of the architecture.
(page 4 col 2)
B. Time-Based LTTA
IV. CONCLUSION
