静态时序分析基本原理和时序分析模型

01_静态时序分析基本原理和时序分析模型Quartus II Software Design Series: Timing Analysis
- Timing analysis basics

2009 Altera Corporation 1

Objectives
Display a complete understanding of timing analysis

2009 Altera Corporation Altera, Stratix, Arria, Cyclone, MAX, HardCopy, Nios, Quartus, and MegaCore are trademarks of Altera Corporation 2

How does timing verification work?
Every device path in design must be analyzed with respect to timing specifications/requirements


Catch timing-related errors faster and easier than gate-level simulation & board testing

Designer must enter timing requirements & exceptions
Used to guide fitter during placement & routing Used to compare against actual results


PRE

PRE Q D Q

IN CLK CLR

D

OUT

CLR

CLR

combinational delays

2009 Altera Corporation Altera, Stratix, Arria, Cyclo