Clock & Reset Architecture

Section goal

Top-level clocking and reset strategy across performance, test, safety, and integration constraints.

How to study this section

1. Start with the topic hub to learn the integration contract.

2. Use mechanism and reports pages to connect contract to metrics.

3. Use debug and worked-example pages for war-room readiness.

4. Close with checklist and PPA impact before closure signoff.

Topics

1. top-clock-tree-architecture/ — Top Clock Tree Architecture

2. reset-distribution-and-sequencing/ — Reset Distribution & Sequencing

3. clock-reset-dft-interactions/ — Clock/Reset + DFT Interactions

4. reset-domain-integration-debug/ — Reset-Domain Integration Debug

Related topics

• SoC Integration course hub

SoC deep dive

Clock/reset assumptions must be globally consistent across functional and test modes.

Concept diagram

CLOCK/RESET FLOW
pll lock -> clock enable -> reset release -> domain ready

Metric graph

BOOT STABILITY
stable boots ████████
reset hangs  ███

Reports and artifacts

• clock architecture report

• reset release timing

• mode matrix

• boot trace summary

Mini case study

Intermittent boot hang traced to one domain releasing reset before dependent clock was stable.

Debug branches

• Check mode-specific constraints

• Trace reset dependencies

• Correlate firmware sequencing

Senior review question

Ask: what baseline, owner, and artifact prove this topic is truly closed?