User Parameters - 2.1 English

Lossless Compression LogiCORE IP Product Guide (PG387)
Document ID
PG387
Release Date
2022-11-18
Version
2.1 English

The following table shows the relationship between the fields in the Vivado® IDE and the user parameters (which can be viewed in the Tcl Console).

Table 1. User Parameters
Vivado IDE Parameter User Parameter Default Value
Compression/Decompression Mode COMP_MODE Decompression
File Compression Standard RFC_TYPE GZIP and ZLIB
History Window Size HISTORY_WINDOW_SIZE 32768
Input Data Width DIN_WIDTH 128
Enable Output FIFO COMP_EN_OUTPUT_FIFO Disabled
Enable Shortest Distance for LZ77 EN_SHORT_DIST Disabled
  1. Parameter values are listed in the table where the Vivado IDE parameter value differs from the user parameter value.
  2. The parameters HISTORY_WINDOW_SIZE and DIN_WIDTH are disabled in the compression mode GUI and their value cannot be changed. This is because the Compression mode doesn’t support other values.