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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
Visible to Intel only — GUID: hco1421694588181
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3.4.2. MSB and LSB Truncation, Saturation, and Rounding
The FIR II IP Core output options on the parameter editor allow you to truncate or saturate the MSB and to truncate or round the LSB. Saturation, truncation, and rounding are non-linear operations.
Bit Range | Option | Result |
---|---|---|
MSB | Truncate | In truncation, the filter disregards specified bits.. |
Saturate | In saturation, if the filtered output is greater than the maximum positive or negative value that can be represented, the output is forced (or saturated) to the maximum positive or negative value. | |
LSB | Truncate | Same process as for MSB. |
Round | The output is rounded away from zero. |
Figure 7. Removing Bits from the MSB and LSB