AMS Handoff Contract: Review Checklist

Review checklist

Review Checklist for AMS Handoff Contract focuses on handoff completeness score, late-change churn, integration escape count. The goal is to connect observed symptom to boundary mechanism, ownership, and signoff risk.

• Boundary assumptions are versioned and signed.

• Mode matrix (power/clock/reset/stress) is explicit.

• Physical context (floorplan/package/power) is included where relevant.

• Metric and artifact references are reproducible.

• Waivers have owner, expiry, and mitigation.

• Owners signed: analog lead, digital lead, program integration manager.

Sign-off ownership

OWNERSHIP MAP — AMS Handoff Contract

artifact                  owner
----------------------    -----------------------------
integration artifact    analog lead
implementation artifact digital lead
signoff artifact        program integration manager

Every boundary issue needs a named owner before fixes start.

AMS deep dive

Boundary assumptions must be explicit, versioned, and testable.

Concept diagram

BOUNDARY CONTRACT FLOW

analog intent -> boundary implementation -> digital wrapper -> signed review

Metric graph

BOUNDARY RISK MIX

missing boundary cells    ███████
stale handoff assumptions ██████
silent mode changes       ████

Reports and artifacts

• boundary-cell coverage

• isolation/ESD review

• handoff contract checklist

• integration waiver log

Mini case study

Noise bursts traced to missing isolation clamp on one low-power transition mode.

Debug branches

• Validate boundary-cell insertion

• Diff handoff assumptions

• Reproduce with tagged mode sequence

Senior review question

Ask: what boundary condition proves this topic is actually closed?

Key takeaways

• State boundary, mode, and evidence tag with every claim.

• Always align analog, digital, and physical owners before signoff decisions.

Common pitfalls

• Fixing averages while tails still fail.

• Skipping package/supply evidence in jitter or SerDes issues.

• Shipping with waivers that lack owner and expiration criteria.

Principal AMS review addendum

A complete AMS handoff defines legal clocks, resets, power states, wrapper assumptions, and validation evidence so digital integration does not guess analog intent.

Metric: handoff completeness score, late-change churn, integration escape count