Assertion-Based Design by Harry D. Foster, Adam C. Krolnik, David J. Lacey

By Harry D. Foster, Adam C. Krolnik, David J. Lacey

Chapter three Specifying RTL houses sixty one three. 1 Definitions and ideas sixty two sixty two three. 1. 1 estate three. 1. 2 occasions sixty five three. 2 estate type sixty five protection as opposed to liveness sixty six three. 2. 1 three. 2. 2 Constraint as opposed to statement sixty seven three. 2. three Declarative as opposed to procedural sixty seven three. three RTL statement specification concepts sixty eight RTL invariant assertions sixty nine three. three. 1 three. three. 2 pointing out houses with PSL seventy two RTL cycle comparable assertions seventy three three. three. three three. three. four PSL and default clock statement seventy four three. three. five Specifying sequences seventy five three. three. 6 Specifying scenarios eighty three. three. 7 PSL integrated capabilities eighty two three. 4Pragma-based assertions eighty two three. five SystemVerilog assertions eighty four three. five. 1 quick assertions eighty four three. five. 2Concurrent assertions 86 three. five. three procedure features ninety five three. 6 PCI estate specification instance ninety six three. 6. 1 PCI evaluation ninety six three. 7 precis 102 bankruptcy four PLI-Based Assertions 103 four. 1 Procedural assertions 104 four. 1. 1 an easy PLI statement a hundred and five four. 1. 2 Assertions inside of a simulation time slot 108 four. 1. three Assertions throughout simulation time slots 111 four. 1. four fake firing throughout a number of time slots 116 four. 2 PLI-based statement library 118 four. 2. 1 Assert quiescent nation 119 four. three precis 123 bankruptcy five practical assurance a hundred twenty five five. 1 Verification ways 126 five. 2 knowing insurance 127 five. 2. 1 Controllability as opposed to observability 128 five. 2.

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However, the following observations related to Figure 1-1 generally apply to the development process: 1 Designers typically first attempt to merge two of the regions of intent into a single domain (that is, ensure that all higher-level requirements established during the specification phase are satisfied during the architect/design phase) and finally merge the resulting domain with the remaining RTL implementation intent domain (that is, insure that the final RTL implementation satisfies the original requirements of the specification) to achieve higher verification coverage.

The assertion was still added to the design, but this example shows that the design review process can definitely help find design bugs. 5 Design validation make everything as simple as possible, but no simpler -Albert Einstein Design validation continues to be one of the dominant portions of a project cycle. Designs are more complex and larger than ever. Creative and sound methodologies are required to ensure that a design is effectively validated. EDA vendors are continuing to add features to their tool sets to increase the productivity of today’s verification engineers.

This corresponds to the following unique phases of development: The specification phase, which is the initial step in the design process. In this phase, the architect envisions the design intent and then establishes high-level requirements for the product. The architect/design phase, which is a process of refining the higher-level intent (described in the specification) into a set of detailed requirements, partitioning the high-level architecture into functional blocks, and considering alternative implementations for each block prior to RTL coding.

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