DenseChip

Verification IP & Protocol Compliance · All levels

Transaction Modeling & Reference Paths

Sequence items, layered sequences, register models, and predictor/reference models that anchor VIP correctness.

Section goal

Sequence items, layered sequences, register models, and predictor/reference models that anchor VIP correctness.

This section trains how to reason from traffic behavior to VIP mechanism, then close with owner accountability, reliability gates, and release-safe decisions.

How to study this section

  1. Start with each topic hub and draw the mechanism path.

  2. Use reports and debug pages to prove causality before tuning.

  3. Practice worked examples and interview drills with explicit evidence chains.

  4. Close each topic with checklist and silicon impact pages.

Topics

  1. sequence-items-and-tlms/ - Sequence Items and TLM Transaction Modeling

  2. layered-sequences/ - Layered Sequences and Scenario Composition

  3. register-model-integration/ - Register Model Integration and Predictability

  4. predictor-and-reference-models/ - Predictor and Reference Model Architecture

Related topics

VIP deep dive

Sequence items, layered sequences, register models, and predictor/reference models that anchor VIP correctness.

Concept diagram

diagram
VIP SECTION - Transaction Modeling & Reference Paths

testcase -> agents -> checkers -> coverage -> evidence

Metric graph

diagram
checker noise vs real violations trend

Reports and artifacts

  • checker hit report

  • coverage closure sheet

  • compliance trace matrix

  • regression health snapshot

Mini case study

A profile drift caused false checker storms until configuration hashes were locked in CI.

Debug branches

  • Reproduce with locked seed and profile

  • Isolate checker vs scoreboard vs DUT paths

  • Map failure to spec clause and owner

Senior review question

Ask: which latency, bandwidth, and reliability evidence proves this VIP topic is closed under real traffic?

Practice this lesson