HC210 datasheet(106/228 Pages) ALTERA

106 / 228 page

5–14

Altera Corporation

September 2008

HardCopy Series Handbook, Volume 1

For more information on how to switch to TimeQuest, refer to

the Switching to the TimeQuest Timing Analyzer chapter of the

Quartus II Handbook, volume 3, on the Altera website at

www.altera.com

When you specify the TimeQuest analyzer as the timing analysis tool, the

TimeQuest analyzer guides the Fitter and analyzes timing results after

compilation.

TimeQuest

The TimeQuest Timing Analyzer is a powerful ASIC-style timing analysis

tool that validates timing in your design by using an industry-standard

constraint, analysis, and reporting methodology. You can use the

TimeQuest Timing Analyzer’s GUI or command-line interface to

constrain, analyze, and report results for all timing paths in your design.

Before running the TimeQuest Timing Analyzer, you must specify initial

timing constraints that describe the clock characteristics, timing

exceptions, and signal transition arrival and required times. You can

specify timing constraints in the Synopsys Design Constraints (SDC) file

format using the GUI or command-line interface. The Quartus II Fitter

optimizes the placement of logic to meet your constraints.

During timing analysis, the TimeQuest Timing Analyzer analyzes the

timing paths in the design, calculates the propagation delay along each

path, checks for timing constraint violations, and reports timing results as

slack in the Report pane and in the Console pane. If the TimeQuest

Timing Analyzer reports any timing violations, you can customize the

reporting to view precise timing information about specific paths, and

then constrain those paths to correct the violations. When your design is

free of timing violations, you can be confident that the logic will operate

as intended in the target device.

The TimeQuest Timing Analyzer is a complete static timing analysis tool

that you can use as a sign-off tool for Altera FPGAs and structured ASICs.

Setting Up the TimeQuest Timing Analyzer

If you want use TimeQuest for timing analysis, from the Assignments tab

in the Quartus II software, click on Timing Analysis Settings, and in the

pop-up window, click the Use TimeQuest Timing Analyzer during

compilation

tab.

HC210 Datasheet(PDF) 106 Page - Altera Corporation