General Multiplexed Interleaver

Permute input symbols using set of shift registers with specified delays (HDL Coder)

Description

The General Multiplexed Interleaver block is available with Communications System Toolbox™.

For information about the simulation behavior and block parameters, see General Multiplexed Interleaver.

HDL Architecture

The implementation for the General Multiplexed Interleaver block is shift register based. If you want to suppress generation of reset logic, set the implementation parameter ResetType to'none'.

When you set ResetType to'none', reset is not applied to the shift registers. Mismatches between Simulink® and the generated code occur for some number of samples during the initial phase, when registers are not fully loaded. To avoid spurious test bench errors, determine the number of samples required to fill the shift registers. Then, set the Ignore output data checking (number of samples) option accordingly. (You can use the IgnoreDataChecking property for this purpose, if you are using the command-line interface.)

HDL Block Properties

ConstrainedOutputPipeline

Number of registers to place at the outputs by moving existing delays within your design. Distributed pipelining does not redistribute these registers. The default is 0. See also ConstrainedOutputPipeline.

InputPipeline

Number of input pipeline stages to insert in the generated code. Distributed pipelining and constrained output pipelining can move these registers. The default is 0. See also InputPipeline.

OutputPipeline

Number of output pipeline stages to insert in the generated code. Distributed pipelining and constrained output pipelining can move these registers. The default is 0. See also OutputPipeline.

ResetType

Suppress reset logic generation. The default is default, which generates reset logic. See also ResetType.

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