By Vijay Madisetti, Chonlameth Arpnikanondt
The platform-centric SoC technique is geared toward the layout of today’s SoC structures with emphasis on real-time, embedded structures. The process offers a tenet and an SoC layout surroundings that promotes an integration of cutting-edge instruments and strategies helpful for the improvement of the structures. It renders a brand new and higher viewpoint in the direction of co-design techniques, whereas additionally elevating a degree of layout abstraction. as the configurable platform gadgets are designed off-cycle, they give a contribution to a common development in improvement time. via incorporating their utilization, the general technique moves a stability among overall layout flexibility and minimum time-to-market.
In bankruptcy 1, demanding situations within the co-design of SoCs are brought. The bankruptcy in brief describes the technical demanding situations dealing with method builders and introduces a proposed technique to the matter. the rest of this e-book provides a extra thorough exam at the challenge and the proposed approach.
Chapter 2 describes the proposed platform-centric SoC layout strategy intimately. It illustrates the layout circulate and discusses every one major step within the layout approach. Definition of a platform as initially outlined through Sabbagh , in addition to the platform-based and platform-centric layout methods, are provided. The bankruptcy concludes by way of evaluating the proposed process with earlier comparable work.
Chapter three lays out the technological historical past for the proposed SoC layout process. while the platform expertise is mentioned in bankruptcy 2, this bankruptcy offers an summary of the opposite basic applied sciences: the Unified Modeling Language (UML) and the Extensible Markup Language (XML). The bankruptcy starts with an creation to UML as a modeling device rather well perceived in the software program engineering neighborhood. it's through a dialogue on an try by means of the thing administration workforce (OMG) to empower UML for the advance of real-time embedded software program – an attempt so one can finally culminate in a layout framework often called the UML Profile for Schedulability, functionality, and Time Specification . Thereafter, an summary of XML and some different comparable web applied sciences ensue.
Chapter four outlines the constitution of the library of platform gadgets (LPO), in addition to furnishes a entire instruction and standards specification platform item needs to own as a way to be scalable and appropriate with the proposed process. crucial parts for every platform item, e.g. structure blueprint, XML-based self-described modules, platform dealing with device, etc., also are mentioned intimately.
Chapter five presents an in depth remedy of UML extensions for the advance of real-time embedded structures. The bankruptcy begins with a format of the Co-design Modeling Framework (CMF) hierarchy that encompasses 5 different sub-profiles – the standard application profile (PCUprofile), the Exception Modeling profile (EMprofile), the Interrupt Modeling profile (IMprofile), the Synthesizable Description Language profile (SHDLprofile), and the structure Blueprint profile (ABprofile). every one of those profiles furnishes a layout framework that's particularly adapted for the proposed technique, and will be ready to meet with the demanding situations posed by way of the layout and try out of real-time embedded SoC-based structures. The bankruptcy, then, proceeds to debate the area thought for every sub-profile, by means of the outline of the corresponding stereotypes.
Chapter 6 applies the platform-centric SoC layout approach, utilizing the CMF profile in UML, to the improvement of a simplified camera approach with a view to show the use and the robustness of the proposed procedure. particularly, the NiOS improvement board is used to imitate the digicam procedure the place uncooked snapshot information are learn from a charge-coupled machine (CCD), after which JPEG encoded and saved into reminiscence. The bankruptcy starts off with an outline of the Altera’s NiOS approach, by way of the particular method improvement procedure that explicitly demonstrates using the proposed technique. A quantitative assessment is then provided that compares the advance rate of the proposed platform-centric SoC layout strategy opposed to a few substitute techniques utilizing expense estimation versions and tools.
Chapter 7 concludes the ebook with a precis and a dialogue of destiny instructions for this attempt on platform-based layout.
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Additional resources for A Platform-Centric Approach to System-on-Chip (SOC) Design
2 Tagged Values To avoid inundating UML models with an excessive number of graphical notations that often result in developmental ineffectiveness, detailed UML element properties may be captured using such mechanisms as attributes, associations and tagged values. A tagged value is a keyword-value pair of type String (in the UML specification, a keyword is actually called a tag) that permits arbitrary information to be attached to any kind of model element so as to provide semantic guidance for back-end tools such as code generators, and report writers , to name a few.
Objects have behaviors and a state. The state of an object depends on its current activity or condition. A statechart diagram shows the possible states of the object and the transitions that cause a change in state. States in statechart diagrams can be nested. Related states can be grouped together into a single composite state. Nesting states is necessary when an activity involves concurrent or asynchronous sub-activities. While a statechart diagram focuses attention on an object undergoing a process, an activity diagram focuses on the flow of activities in a single process.
Mathew  describes a UML model as the basic unit of development which is highly self-consistent and loosely coupled with other models by navigation channels. A model is not directly visible to users. It captures the underlying semantics of a problem, and contains data accessed by tools to facilitate information exchange, code generation, navigation, etc. UML models are represented graphically. Many different perspectives can be constructed for a model—each shows all or part of the model and is portrayed by one or more diagrams.