IPR-FIR Altera, IPR-FIR Datasheet - Page 25

• Manufacturer Part Number: IPR-FIR
• Description: IP CORE Renewal Of IP-FIR
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IPR-FIR

• Software Application: IP CORE, DSP Filters And Transforms
• Supported Families: Arria GX, Arria II GX, Cyclone, HardCopy, Stratix
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Function: Finite Impulse Response Compiler
• License: Renewal License
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Specifying the Coefficients
© December 2010 Altera Corporation
1
This chapter gives an example of how to parameterize a FIR Compiler MegaCore
function and describes the available parameters.
The Parameterize - FIR Compiler pages provide the same options whether they have
been opened from the DSP Builder or MegaWizard Plug-In Manager flow.
For information about opening the parameterization pages, refer to
on page
The user interface only allows you to select legal combinations of parameters, and
warns you of any invalid configurations.
A FIR filter is defined by its coefficients. The FIR Compiler provides the following
options for obtaining coefficients:
■
■
Figure 3–1 on page 3–2
You can click New Coefficient Set on this page to define or load new coefficients.
Alternatively, or you can click Edit Coefficient Set to edit the default coefficient set or
Remove Coefficient Set to clear the currently loaded coefficients.
You can use the FIR Compiler to generate coefficients. The coefficient generator
supports single rate, interpolation, and decimation rate specification filter types.
For information about generating coefficients for these filter types, refer to
the FIR Compiler Coefficient Generator” on page
You can load coefficients from a file. For example, you can create the coefficients in
another application such as MATLAB, SPW, or a user-created program, save them
to a file, and import them into the FIR Compiler. For more information, refer to
“Loading Coefficients from a File” on page
2–1.
shows the Parameterize - FIR Compiler page.
3–6.)
3. Parameter Settings
3–2.
“Design Flows”
FIR Compiler User Guide
“Using
®