Lattice Semiconductor
Parameter Settings
Figure 3-1. CIC Parameter Tab
Parameter Descriptions
This section describes the available parameters for the CIC Filter IP core.
Filter Type
This parameter determines whether the CIC filter is configured as an interpolator or a decimator.
Options
Input Data Width
This parameter specifies the width of the input data in bits.
Stages
This parameter specifies the number of integrator and comb stages.
Number of Channels
This parameter specifies the number of time-shared data channels.
Differential Delay
Programmable Delay
This parameter determines whether the differential delay is fixed or programmable. When Programmable delay
is selected, ports firdf and firdfset will be added.
Delay
This parameter is only available when Programmable delay is not selected. This parameter sets the differential
delay factor in each FIR filter.
Max Delay
IPUG42_02.6, August 2010
19
Cascaded Integrator-Comb (CIC) Filter User’s Guide
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