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4.1. FIR II IP Core Interpolation Filters
4.2. FIR Decimation Filters
4.3. FIR II IP Time-Division Multiplexing
4.4. FIR II IP Core Multichannel Operation
4.5. FIR II IP Multiple Coefficient Banks
4.6. FIR II IP Coefficient Reloading
4.7. Reconfigurable FIR Filters
4.8. FIR II IP Core Interfaces and Signals
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3.5.1.3. Using Large RAM Threshold
This FIR II IP core threshold is the trade-off between medium and large RAM blocks. For larger delays, implement memory in medium-block RAM (M4K, M9K) or use larger M-RAM blocks (M512K, M144K).
- Set the number of bits in a memory or delay greater than this threshold, to use M-RAM.
- Set a large value such as the default of 1,000,000 bits, to never use M-RAM blocks.