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

ISBN-10: 1402080271

ISBN-13: 9781402080272

ISBN-10: 140208028X

ISBN-13: 9781402080289

Chapter three Specifying RTL homes 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 safeguard 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 options sixty eight RTL invariant assertions sixty nine three. three. 1 three. three. 2 pointing out houses with PSL seventy two RTL cycle similar assertions seventy three three. three. three three. three. four PSL and default clock assertion seventy four three. three. five Specifying sequences seventy five three. three. 6 Specifying situations eighty three. three. 7 PSL integrated services eighty two three. 4Pragma-based assertions eighty two three. five SystemVerilog assertions eighty four three. five. 1 speedy assertions eighty four three. five. 2Concurrent assertions 86 three. five. three method capabilities ninety five three. 6 PCI estate specification instance ninety six three. 6. 1 PCI assessment ninety six three. 7 precis 102 bankruptcy four PLI-Based Assertions 103 four. 1 Procedural assertions 104 four. 1. 1 an easy PLI statement one zero five four. 1. 2 Assertions inside 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 country 119 four. three precis 123 bankruptcy five practical insurance one hundred twenty five five. 1 Verification methods 126 five. 2 realizing insurance 127 five. 2. 1 Controllability as opposed to observability 128 five. 2.

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If this domain is large, it may indicate a poor design (that is, little thought was given to design analysis prior to RTL coding). specification, architect/design and implementation This is the ideal domain resulting from the three phases of the design process. Assertions derived from the specification, can ensure that the implementation satisfies its requirements. In addition, a good functional coverage model will identify holes in the verification process related to this domain. 3 Roles and ownership Specifying intent during the three phases of design generally involves multiple stakeholders, where each stakeholder plays a critical role in the success of the assertion-based methodology.

In the worst case, the requirements developed during the specification phase (and contained within this region of the Venn diagram) were for some reason not considered during the architect/design or RTL implementation phases. This generally indicates a serious problem. Hence, ideally this space is very small. D - Architect/Design only. This domain consists of design intent details that were not defined in the higher-level specification phase, and for some reason were not implemented in the RTL code.

I - RTL implementation only. This domain of intent was not defined by the specification or the architect/design phases. This happens frequently since there are many lower-level implementation details that neither the specification nor the design need to describe. SD - Specification and architect/design. This domain was defined by the specification and architect/design phases, but details were either missed during RTL implementation or deemed unnecessary (hence, the requirements were changed but not updated).

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

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