convolutional_interleaver_us HDL Worker

Implementation of a convolutional interleaver.

Detail

The convolutional interleaver worker uses shift registers to implement the delay lines. The shift registers were written to infer an SRL.

The worker allows for setting a port_data_width parameter property to define the widths of the input and output ports.

References:

• https://en.wikipedia.org/wiki/Burst_error-correcting_code#Interleaved_codes

• https://www.etsi.org/deliver/etsi_en/300400_300499/300421/01.01.02_60/en_300421v010102p.pdf

Worker Properties

• port_data_width

  • Type: uchar

  • Access:

    • Parameter: True

    • Writable: False

    • Initial: False

    • Volatile: False

    • Read back: False

  • Default value: None

• bit_width

  • Type: uchar

  • Access:

    • Parameter: True

    • Writable: False

    • Initial: False

    • Volatile: False

    • Read back: False

  • Default value: None

• ocpi_buffer_size_output

  • Type: ushort

  • Access:

    • Parameter: False

    • Writable: False

    • Initial: True

    • Volatile: False

    • Read back: False

  • Default value: 0

• ocpi_blocked_output

  • Type: ulong

  • Access:

    • Parameter: False

    • Writable: False

    • Initial: False

    • Volatile: True

    • Read back: False

  • Default value: None

• ocpi_max_latency_output

  • Type: ushort

  • Access:

    • Parameter: True

    • Writable: False

    • Initial: False

    • Volatile: False

    • Read back: False

  • Default value: None

• ocpi_latency_output

  • Type: ushort

  • Access:

    • Parameter: False

    • Writable: False

    • Initial: False

    • Volatile: True

    • Read back: False

  • Default value: None

• ocpi_messages_output

  • Type: ulong

  • Access:

    • Parameter: False

    • Writable: False

    • Initial: False

    • Volatile: True

    • Read back: False

  • Default value: None

• ocpi_bytes_output

  • Type: ulong

  • Access:

    • Parameter: False

    • Writable: False

    • Initial: False

    • Volatile: True

    • Read back: False

  • Default value: None

Worker Ports

Inputs:

• input

  • Protocol: ushort_timed_sample

  • Optional: False

Outputs:

• output

  • Protocol: ushort_timed_sample

  • Optional: False

Worker Ports

Inputs:

• input: Size defined by port_data_width.

  • Type: StreamInterface

  • Protocol: ushort_timed_sample-prot

  • Clock: output

  • Data width: port_data_width

Outputs:

• output: Size defined by port_data_width

  • Type: StreamInterface

  • Protocol: ushort_timed_sample-prot

  • Worker EOF: false

  • InsertEOM: true

  • ClockDirection: in

  • Data width: port_data_width

Utilisation

Utilization reporting is not currently implemented.