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Course contents

  • How to Use This Course
  • Low-Power Metrics Reference
  • Low-Power Glossary
  • Reading Path
  • Power Intent Fundamentals61
  • Isolation & Retention61
  • Level Shifters & Power Switches61
  • UPF Implementation Flow61
  • Low Power Verification61
    • Power State Verification
      • Power State Verification: Mechanism
      • Power State Verification: Inputs & Outputs
      • Power State Verification: Reports & Metrics
      • Power State Verification: Debug Playbook
      • Power State Verification: Worked Example
      • Power State Verification: Pitfalls & Red Flags
      • Power State Verification: Interview Drills
      • Power State Verification: Review Checklist
      • Power State Verification: Theory Deep Dive
      • Power State Verification: Design Space
      • Power State Verification: Expanded Case Study
      • Power State Verification: Step-by-Step Walkthrough
      • Power State Verification: Comparison Matrix
      • Power State Verification: Software / Programmer View
      • Power State Verification: Silicon PPA Impact
    • UPF Formal Checks
    • Isolation Coverage
    • Low-Power Verification Debug
    • Low Power Verification: Tricky Q&A
  • PD & Power Grid Integration61
  • Low Power Interview Prep4
  • Low Power / UPF Cheatsheet
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‹Power State Verification
  1. Topics
  2. Low-Power Design
  3. Low Power Verification
  4. Power State Verification
  5. Power State Verification: Reports & Metrics

Low Power / UPF · All levels

Power State Verification: Reports & Metrics

Reports & Metrics for Power State Verification.

On this page

    Reports and metrics

    Reports & Metrics for Power State Verification focuses on state transition coverage, illegal-transition hits, and reset-after-wakeup pass rate. The goal is to link observed behavior to power-intent mechanism, ownership, and release risk.

    Reports must translate state transition coverage, illegal-transition hits, and reset-after-wakeup pass rate into release decisions. Totals are insufficient; you need transition context, ownership status, and closure trend.

    Transition waveform lens

    Diagram
    MODE TRANSITION WAVEFORM — Power State Verification
    
    time ---> 
    save_req      ___/---------\____________________
    iso_en        ________/----------------\________
    switch_en     _____________/--------\___________
    domain_vdd    -----------\____OFF____/----------
    restore_req   ____________________/---\_________
    
    Ordering errors are the most common LP escapes.

    Metric trend

    Diagram
    BEFORE / AFTER FIX — Power State Verification
    
    metric quality
      ^
      |                       o target region
      |                 o post-fix + regression
      |            o
      |      o failing baseline
      +----------------------------------------> iteration
          sequence audit   policy fix   full re-run
    • Track state transition coverage, illegal-transition hits, and reset-after-wakeup pass rate per transition, domain, and subsystem.

    • Report policy binding status with each metric movement.

    • Track open waivers with age and owner to avoid silent risk drift.

    • Store metric snapshots next to reproducible revision tags.

    Low-power deep dive

    Transition-centric verification closes LP risk better than active-mode-centric regressions.

    Concept diagram

    Diagram
    VERIFY LOOP
    
    transition matrix -> simulation + formal -> coverage -> closure

    Metric graph

    Diagram
    COVERAGE CLOSURE
    
    state transitions covered   ███████████
    isolation activation        █████████
    retention restore paths     ████████

    Reports and artifacts

    • state coverage

    • formal LP properties

    • isolation coverage

    • LP bug triage dashboard

    Mini case study

    Coverage looked high, but one untested OFF->RUN transition hid a restore race.

    Debug branches

    • Rank by transition criticality

    • Correlate PMU logs with failures

    • Escalate unproven properties

    Senior review question

    Ask: what transition evidence proves this topic is closed, and which owner signs it?

    Key takeaways

    • State transition context must accompany every low-power metric claim.

    • Intent changes require simulation, formal, and implementation re-validation.

    Common pitfalls

    • Comparing results from mismatched UPF revisions.

    • Assuming static checks replace transition validation.

    • Shipping with aged waivers and unclear ownership.

    Execution drill pack 1

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 1
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 2

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 2
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 3

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 3
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 4

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 4
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 5

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 5
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 6

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 6
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 7

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 7
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 8

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 8
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 9

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 9
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 10

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 10
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 11

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 11
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 12

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 12
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

    Execution drill pack 13

    Use this pack to rehearse low-power closure on low-power/low-power-verification/power-state-verification/reports: transition framing, policy ownership, implementation evidence, and release confidence.

    Transition checklist

    • State transition explicitly named with legal source/target states.

    • Crossing and domain ownership are mapped and agreed.

    • Policy controls are traced to always-on source logic.

    • Waveform bookmarks align controls with state timestamps.

    Review prompts

    1. Which policy object is first to deviate from intent?

    2. Which owner can apply the smallest reversible fix?

    3. What regression matrix proves no collateral damage?

    4. Which waiver conditions would still block release?

    Evidence capsule

    Diagram
    LP EVIDENCE CAPSULE 13
    
    PATH: low-power/low-power-verification/power-state-verification/reports
    STATE WINDOW: <from -> to>
    POLICY OBJECT: <isolation / retention / shifter / switch>
    OWNER: <name>
    PRIMARY ARTIFACT: <report/waveform/formal result>
    RELEASE DECISION: <close / bounded waiver / escalate>

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    See also

    • Power State Verification: Mechanism
    • Power State Verification: Worked Example
    • Power State Verification: Pitfalls & Red Flags