Memory Maps & I/O

Section goal

Global address planning, interrupt architecture, I/O integration, and hardware/software contract hygiene.

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. global-address-map-planning/ — Global Address Map Planning

2. interrupt-topology-contracts/ — Interrupt Topology Contracts

3. io-subsystem-integration/ — I/O Subsystem Integration

4. hw-sw-boot-contract/ — HW/SW Boot Contract

Related topics

• SoC Integration course hub

SoC deep dive

Address, interrupt, and IO contracts are where hardware/software alignment is won or lost.

Concept diagram

HW/SW CONTRACT
address map + interrupt model + io defaults -> firmware behavior

Metric graph

BOOT REGRESSION SOURCES
map churn █████
reset defaults ████
driver mismatch ███

Reports and artifacts

• address decode audit

• interrupt latency report

• IO bring-up checklist

• boot contract review

Mini case study

A map alias issue caused sporadic peripheral misconfiguration despite clean block-level tests.

Debug branches

• Freeze address map baseline

• Audit reset defaults

• Validate firmware assumptions

Senior review question

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