User guide

20 Altera Corporation
Stratix II Professional Filtering Lab
Table 6 lists the parameters for the FIR_3MHz block in the Parameterize
- FIR Compiler MegaCore Function dialog box.
3. Click Cancel to close the Parameterize - FIR Compiler MegaCore
Function dialog box.
4. Close the window to exit IP Toolbench.
Table 6. Parameters in the Parameterize - FIR Complier MegaCore Function
Dialog Box
Parameter Value
Under Coefficients Specification - (Low Pass Set [1])
Coefficients Scaling Auto
Bit Width (Coefficients) 14
Under Architecture Specification
Device Family Stratix II
Structure Distributed Arithmetic : Fully Parallel
Filter
Pipeline Level 1
Data Storage Logic Cells
Coefficient Storage Logic Cells
Under Rate Specification Single Rate
Under Input Specification
Number of Input Channels 1
Input Number System Signed Binary
Input Bit Width 12
Under Output Specification
Based on Method Actual Coefficients
Output Number System Custom Resolution
Bits to Keep 17 bits
Most Significant Bit (MSB) 0 bits, Truncate
Least Significant Bit (LSB) 12-bits, Round