Circuit Modeling with SNL

Master the Simic Network Language through progressive learning paths.

Choose Your Learning Path

The Simic Network Language (SNL) provides a powerful framework for describing digital circuits at multiple levels of abstraction. Whether you're new to Simic or an experienced user, this guide organizes circuit modeling topics from foundational concepts to advanced techniques.

Beginner: Foundational Concepts

Start here to learn the core building blocks of SNL circuit descriptions.

SNL Fundamentals

Learn TYPE and PART statements, pin declarations, and basic circuit instantiation.

Shortcuts & Formatting

Master !FORMAT directives, field skipping with -, and keyword abbreviations for concise descriptions.

Intermediate: Building Complexity

Expand your skills with advanced connectivity, hierarchy, and electrical modeling.

Pin Connections & Signal Routing

Understand by-order vs by-name connections, signal vectors, and multidimensional arrays.

Hierarchical Design

Build complex circuits with macro composition, dotted notation, and abstraction levels.

Electrical Attributes

Specify delays (ODEL, ORISE, OFALL), loading (ILOD), and drive strength parameters.

Advanced: Expert Features

Master professional-grade timing analysis and specialized modeling techniques.

Advanced Delay Modeling

Slew-rate dependent delays, resultant delay calculation, pin loading, and functional timing checks.

Signal Behavior

Signal decay, spike propagation control, wire-ties, and multi-driver dominance rules.

Advanced Features

Physical size metrics, behavioral modeling integration, and performance optimization.

Quick Reference for Experienced Users

Already familiar with SNL? Jump directly to reference materials: