LDPC Decode Code Parameters - 1.1 English

Soft-Decision FEC Integrated Block LogiCORE IP Product Guide (PG256)

Document ID
PG256
Release Date
2022-10-19
Version
1.1 English
LDPC Decode
Selects LDPC decode FEC mode.
Support W>1
Specifies whether codes with W>1 are supported. This results in additional checks on all codes being run on the decoder.
Code Definition
LDPC code definition file. This is a YAML file (http://yaml.org) which specifies the custom LDPC code definitions for use with the IP instance.
Important: The code definition file must have a .txt extension.
Enable Overrides
Enables the following parameter overrides:
No Final Parity Check
Disables the output parity check logic. Increases throughput for large codes.
Scale
Layer scaling factor. The core uses a default of 0.75 if undefined in the YAML file. The scale is defined as 0.0625-1, in increments of 0.0625. The default value is 0.75.
Max. Schedule
Sets the maximum code block interleaving. See LDPC Block Interleaving for details.
Note: Overrides are not available when the 5G standard has been selected.
Note: Values set in the Vivado® IDE override those defined in the specified YAML file or standard.