The FIR Compiler supports two architectures and several configurable filters. The following figure shows the features and supported filter configurations.
Figure 1. Feature Support Multiplex
Figure 2. Feature Support Matrix
Notes
- The upper limit on the number of coefficients exists only when the FIR Compileris configured with more than one coefficient set.
- Maximum Coefficient Width reduces by one when the coefficients are signed. Similarly for Maximum Data Width when the Data values are signed.
- The allowable range for the Data Width field in the Vivado IDE might reduce further to ensure that the accumulator width does not exceed the maximum.
- Maximum Parallel Datapaths reduces to 8 when Coefficient Width or Data Width is greater than 25-bits.
- Continuous 1 to 256, plus 512, and 1024.
- Coefficient Reload is not supported with fractional rate interpolation filter when configured for super sample rate.
- Sample frequency greater than clock frequency.
- Channel interleaving and coefficient reload are not supported.
- Samples frequence less than clock frequency.