Altera DQ (ALTDQ) - Manual (Page 15)

Design Example: Implement DDR I/O Interface Page 15
November 2010 Altera Corporation DQ (ALTDQ) and DQS (ALTDQS) Megafunctions
Page 4 of the MegaWizard Plug-In Manager is the EDA page. This page lists the
simulation model files needed to simulate the generated design files. On this page,
you can enable the Quartus II software to generate a synthesis area and timing
estimation netlist for this megafunction for use by third-party tools.
Page 5 of the MegaWizard Plug-In Manager is the Summary page. On this final page,
the ALTDQ MegaWizard Plug-In Manager displays a list of the types of files to be
generated. The automatically generated Variation file contains wrapper code in the
language you specified on page 2a. On this page, you can specify additional types of
files to be generated. Choose from the AHDL Include file (.inc),
VHDL component declaration file, (.cmp), Quartus II symbol file
(.bsf), Instantiation template file (.v), and Verilog
HDL black box file (_bb.v). If you select Generate Netlist on the
Simulation Model
page, the file for that netlist is also available. A gray checkmark
indicates a file that is automatically generated, and a red checkmark indicates
generation of an optional file.
Design Example: Implement DDR I/O Interface
This design example uses the ALTDQ and ALTDQS megafunction to implement
DDR I/O interface. This example uses the MegaWizard Plug-In Manager in the
Quartus II software. As you go through the wizard, each page is described in detail.
Design Files
The design files are available in the Examples for ALTDQ and ALTDQS Megafunction
User Guide page on the Altera website.
Example
In this example, you perform the following tasks:
■ Create a DDR I/O interface using the ALTDQ and ALTDQS megafunctions and
the MegaWizard Plug-in Manager
■ Implement the design and assign the EP2C5T144C6 device to the project
■ Compile and simulate the design
Create an ALTDQ Megafunction
Perform the following tasks to create an ALTDQS megafunction:
1. Unzip the altdq_dqs_DesignExample.zip to any working directory.
2. In the Quartus II software, open the dq_dqs_ex.qar project.
3. On the Tools menu, click MegaWizard Plug-In Manager.