By Ahmed Amine Jerraya, Hong Ding, Polen Kission, Maher Rahmouni

ISBN-10: 1461378990

ISBN-13: 9781461378990

ISBN-10: 1461563151

ISBN-13: 9781461563150

Improvement within the caliber of built-in circuit designs and a designer's productiveness may be accomplished by means of a mixture of 2 elements:

  • Using extra established layout methodologies for huge reuse of current parts and subsystems. it sounds as if 70% of latest designs correspond to latest parts that can't be reused due to an absence of methodologies and instruments.
  • Providing better point layout instruments permitting to begin from a better point of abstraction. After the good fortune and the frequent popularity of good judgment and RTL synthesis, the next move is behavioral synthesis, often referred to as architectural or high-level synthesis.

Behavioral Synthesis and part Reuse with VHDL offers equipment and strategies for VHDL dependent behavioral synthesis and part reuse. The target is to boost VHDL modeling innovations for rising behavioral synthesis instruments. designated cognizance is given to established and modular layout tools permitting hierarchical behavioral specification and layout reuse. The objective of this ebook isn't to debate behavioral synthesis quite often or to debate a particular instrument yet to explain the explicit concerns on the topic of behavioral synthesis of VHDL description.
This e-book ambitions designers who've to exploit behavioral synthesis instruments or who desire to become aware of the true chances of this rising know-how. The publication may also be of curiosity to lecturers and scholars to profit or to coach VHDL dependent behavioral synthesis.

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Additional info for Behavioral Synthesis and Component Reuse with VHDL

Example text

We can easily see that all these edges are issued from branch nodes. We assume that this description corresponds to a circuit running indefinitely, that is the reason en is inserted. 3 (Graph node) Nodes are of two classes: • operation nodes such as assignments, logic, arithmetic operations and procedure calls, represented by the subset of V, Vo. 2, Vo= {Vl,V2,VS,V6,V7}. • branch nodes modeling conditional statements such as If, Case and Conditional loops, represented by Vb. 2, Vb = {V3' V4}. = Thus V VoU Vb The operations nodes have only one successor, while branch nodes may have more than one successor.

Therefore, each type of unit will differ from the others principally by its functionality, while the connection with the surrounding components will be done following similar schemes. Functional units A functional unit is a specific datapath unit aimed to execute the operations of the behavioral description. The term functional unit or FU used here is very general and means all types of units executing transformations on data. This include the execution units (EXU) and application specific execution units (ASU) as defined in [VRB+93].

Besides, status 55 is defined in order to store the execution report of expressions. 5 (FSMD) An F5MD is formulated as a quintuple: < 5, I x 55,0 x A, f, h >, Where: • 5: the set of states of the F5MD • I x 55 : The set of inputs of the F5MD. Inputs extended with status expresswns • 0 x A : The set of outputs of the F5MD. Outputs extended with variable assignments. l\Jlodels for behavioral synthesis 31 • f: The next state function, mapping 5 x (I x 55) -+ • h: The output function, mapping 5 x (I x 55) (0 x A).

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Behavioral Synthesis and Component Reuse with VHDL by Ahmed Amine Jerraya, Hong Ding, Polen Kission, Maher Rahmouni


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