Download Hierarchical Annotated Action Diagrams: An by Eduard Cerny, Bachir Berkane, Pierre Girodias, Karim Khordoc PDF

By Eduard Cerny, Bachir Berkane, Pierre Girodias, Karim Khordoc

ISBN-10: 146137569X

ISBN-13: 9781461375692

ISBN-10: 1461556155

ISBN-13: 9781461556152

Standardization of description languages and the provision of synthesis instruments has caused a striking elevate within the productiveness of designers. but layout verification equipment and instruments lag in the back of and feature hassle in facing the expanding layout complexity. this can worsen simply because extra advanced structures at the moment are built through (re)using highbrow estate blocks constructed via 3rd events. to make sure such designs, summary types of the blocks and the method needs to be constructed, with separate issues, corresponding to interface communique, performance, and timing, that may be confirmed in a virtually autonomous model. typical Description Languages resembling VHDL and Verilog are encouraged by way of procedural `imperative' programming languages within which functionality and timing are inherently intertwined within the statements of the language. moreover, they don't seem to be conceived to kingdom the cause of the layout in an easy declarative method that comprises provisions for layout offerings, for declaring assumptions at the setting, and for indicating uncertainty in process timing.
Hierarchical Annotated motion Diagrams: An Interface-OrientedSpecification and Verification Method provides an outline method that was once encouraged via Timing Diagrams and strategy Algebras, the so-called Hierarchical Annotated Diagrams. it's compatible for specifying platforms with advanced interface behaviors that govern the worldwide process habit. A HADD specification will be switched over right into a behavioral real-time version in VHDL and used to make sure the encircling good judgment, similar to interface transducers. additionally, functionality might be conservatively abstracted away and the interactions among interconnected units might be established utilizing Constraint good judgment Programming according to Relational period mathematics.
Hierarchical Annotated motion Diagrams: An Interface-OrientedSpecification and Verification Method is of curiosity to readers who're fascinated about defining tools and instruments for system-level layout specification and verification. The options for interface compatibility verification can be utilized by way of training designers, with none extra subtle software than a calculator.

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The composition operators are: Concatenation, Loop, Parallel, DClwice (Delayed Clwice), and Exception. The port map establishes 1. We have recently relaxed this strict form of encapsulation, as explained in the extensions to our method in Chapter 8, but the entire system has not yet been adapted to the new semantics, hence we present the original form here. Hierarchical Annotated Action Diagrams 17 the correspondence between the external ports of ~ and the ports and internal signals ofQ. For all operators, except DChoice, a status of non-satisfaction in one of At, ...

Am} and Ht , ... , Hn ~ act(1). T is in an intermediate form if it has the following structure: T Tn Tn+t del del del = ROPn(Hw Ow [mw MJ, Tn+t ) cons: Par(at, ... , am> The subterm cons: Par(at, ... , am> is called the kernel of T. 2. 1 • Proof(Sketch). 5. ftLCis a congruence, we can substitute equivalent terms. , signaling an inconsistent system of timing constraints. , without a deadlock. 1. Note that T is an ADA~ term. Thus T is constructed using only Prefixing. 6 (Reactivity) Let Tbe an AD~ term and G(n ('1;T, (Act u {a} ) X R+, ;) its LRG.

Lfn ---" n', n' =0 = (Act - {a}, {ROPi}, cons') then: de! t. Sol[cons'] ~ 0, and n. 2. Consider the following AD term in the intermediate form: T cons = Latest({a, b}, 0, [5,5], cons: Par(a, b, c, 0», and = (-4 ~ t a - tb ~ 2) /\ (1 ~ t c - tb ~ 8) /\ (2 ~ tc - t a ~ 10) /\ (2 ~ tc - t de! de! 0 ~ 3) T executes a, b and c under the assumption that cons is true, and delays the execution of 0 five time unit~e¥ter the occurrence time of the last action in {a, b}. T denotes the structure SFG(1) = ({T11' T12, T2b T22 }, T, ---"), where T11 consU = = de!

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Hierarchical Annotated Action Diagrams: An Interface-Oriented Specification and Verification Method by Eduard Cerny, Bachir Berkane, Pierre Girodias, Karim Khordoc

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