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Megafunction Overview User Guide

© February 2009

UG-01056-1.0

Introduction
Megafunctions are vendor-specific intellectual property (IP) blocks that are parameterizable
and optimized for Altera® device architectures. Altera provides a library of megafunctions,
including the Library of Parameterized Modules (LPM) functions and other parameterized
functions, which offer more efficient logic synthesis and device implementation.
f

For more information about a particular megafunction, refer to the user guide of the
specific megafunction in the Literature: User Guides section of the Altera website.

f

For the latest list of available megafunctions and LPMs, refer to the Megafunctions or
the LPM section in the Quartus® II Help.

Overview
The MegaWizard™ Plug-In Manager allows you to create and modify design files that
contain custom megafunction variations, which you can then instantiate in a design file.
These custom megafunction variations are based on Altera-provided megafunctions. You
can use the MegaWizard Plug-In Manager to create Altera megafunctions, LPM functions,
and IP functions for use in designs in the Quartus II software, the EDA design entry, and
synthesis tools.
You can start the MegaWizard Plug-In Manager from the Quartus II software through one of
the following ways:
■

On the Tools menu, click MegaWizard Plug-In Manager.

■

When working in the Block Editor, from the Edit menu, click Insert Symbol Block, or
right-click in the Block Editor, point to Insert, and click Symbol as Block. In the Symbol
window, click MegaWizard Plug-In Manager.

■

Start the stand-alone version of the MegaWizard Plug-In Manager by typing the
following command at the command prompt:
qmegawiz r

■

© February 2009

In Windows, go to All Programs in the Start menu, select Quartus II in the Altera folder,
and click Quartus II MegaWizard Plug-In Manager.

Altera Corporation

Megafunction Overview User Guide

Page 2

Introduction

Figure 1 shows the categories of megafunctions that are available from the
MegaWizard Plug-In Manager.
Figure 1. Categories of Megafunctions Available in the MegaWizard Plug-In Manager

Device Family Support
You can check the device families supported for a particular megafunction through
one of the following ways:
■

Quartus II Help file—The latest information about the device family support is
individually stated for each megafunction in the Quartus II Help file.

■

MegaWizard Plug-In Manager:
■

Select a megafunction from the Which megafu...
© February 2009 Altera Corporation Megafunction Overview User Guide
UG-01056-1.0© February 2009
Megafunction Overview User Guide
Introduction
Megafunctions are vendor-specific intellectual property (IP) blocks that are parameterizable
and optimized for Altera
®
device architectures. Altera provides a library of megafunctions,
including the Library of Parameterized Modules (LPM) functions and other parameterized
functions, which offer more efficient logic synthesis and device implementation.
f For more information about a particular megafunction, refer to the user guide of the
specific megafunction in the Literature: User Guides section of the Altera website.
f For the latest list of available megafunctions and LPMs, refer to the Megafunctions or
the LPM section in the Quartus
®
II Help.
Overview
The MegaWizard
Plug-In Manager allows you to create and modify design files that
contain custom megafunction variations, which you can then instantiate in a design file.
These custom megafunction variations are based on Altera-provided megafunctions. You
can use the MegaWizard Plug-In Manager to create Altera megafunctions, LPM functions,
and IP functions for use in designs in the Quartus II software, the EDA design entry, and
synthesis tools.
You can start the MegaWizard Plug-In Manager from the Quartus II software through one of
the following ways:
On the Tools menu, click MegaWizard Plug-In Manager.
When working in the Block Editor, from the Edit menu, click Insert Symbol Block, or
right-click in the Block Editor, point to Insert, and click Symbol as Block. In the Symbol
window, click MegaWizard Plug-In Manager.
Start the stand-alone version of the MegaWizard Plug-In Manager by typing the
following command at the command prompt:
qmegawiz r
In Windows, go to All Programs in the Start menu, select Quartus II in the Altera folder,
and click Quartus II MegaWizard Plug-In Manager.
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