User Guide

1.4. ALTERA_CORDIC IP Core Parameters
Table 2. SinCos Parameters
Parameter Values Description
Input data widths
Fraction F 1 to 64 Number of fraction bits.
Width w Derived Width of fixed-point data.
Sign signed or
unsigned
The sign of the fixed-point data.
Output data widths
Fraction 1 to 64, where
F
OUT
≤ F
IN
Number of fraction bits.
Width Derived Width of fixed-point data.
Sign Derived The sign of the fixed-point data.
Generate
enable port
On or off
Turn on for enable signal.
Table 3. Atan2 Parameters
Parameter Values Description
Input data widths
Fraction 1 to 64 Number of fraction bits.
Width 3 to 64 Width of fixed-point data.
Sign signed or
unsigned
The sign of the fixed-point data.
Output data widths
Fraction Number of fraction bits.
Width Derived Width of fixed-point data.
Sign Derived The sign of the fixed-point data.
Generate
enable port
On or off
Turn on for enable signal.
LUT Size
Optimization
Turn on to move some of the typical CORDIC operations into look up tables to reduce
implementation cost.
Manually
Specify LUT
Size
Turn on to input the LUT size. Larger values (9-11) enable mapping some
computations to memory blocks Only when LUT Size Optimization is on..
Table 4. Vector Translate Parameters
Parameter Values Description
Input data widths
Fraction 1 to 64 Number of fraction bits.
Width Signed: 4 to
64; unsigned: F
to 65
Width of fixed-point data.
continued...
1. ALTERA_CORDIC IP Core User Guide
683808 | 2017.05.08
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ALTERA_CORDIC IP Core User Guide
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