Applications of Specification and Design Languages for SoCs: by A. Vachoux

By A. Vachoux

This publication incorporates a collection of the easiest contributions to the discussion board on Specification and layout Languages held in 2005 (FDL'05). It presents specified insights into contemporary works facing a wide spectrum of matters in system-on-chip layout. the entire chapters were conscientiously revised and prolonged to provide updated info. in addition they offer seeds for additional researches and advancements within the box of heterogeneous systems-on-chip design.

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Furthermore, s and s are not synchronous since different clock domains are involved in the service channel. Step 2: With process refinement, we discuss how to connect a process to the service interface and how its synchronization property can be met by using adapters to wrap the process. Particularly, to guarantee a correct refinement, the process synchronization property must be consistent from the specification to the refined model. We classify and analyze the synchronization property of processes and then discuss how to maintain synchronization consistency.

A value makes the amplifier undefined. The Sum process (s3 and s4 ) has a strong synchronization. It is a combinational process and thus tolerable to events with a value. However, the two events of s3 and s4 must be synchronized before being processed since they represent the low- and high-frequency components of the same audio sample. The level control (sb and s5 ) process has a weak synchronization. It can fire even when either or both of the events of sb and s5 are absent since pressing buttons happens irregularly and the bass level surpassing the threshold occurs only aperiodically.

The process cannot fire with the pattern I = {[ ], [ ], . . , [ ]}. Strong synchronization. All the input events of a process must be either present or absent in order to fire the process. The process has only two firing rules PI = {I1 , I2 }, where I1 = {[∗], [∗], . . , [∗]} and I2 = {[ ], [ ], . . , [ ]}. Weak synchronization. The process can fire with any possible input patterns. For a two-input process, its firing rules are PI = {I1 , I2 , I3 , I4 }, where I1 = {[∗], [∗]}, I2 = {[ ], [ ]}, I3 = {[∗], [ ]}, and I4 = {[ ], [∗]}.

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