Interfacing to the Core - 2.0 English

Lossless Compression LogiCORE IP Product Guide (PG387)

Document ID
PG387
Release Date
2021-10-27
Version
2.0 English

An AXI transaction example for the decompression function is shown in the below pictures. This example shows how to pass the compressed data to the IP using the hexdump of a compressed file. Figure 2 shows the first transaction on how to pass the compressed file contents. Figure 3 shows the last AXI transaction for that compressed file.

Figure 1. Hexdump of an Example Compressed File

Figure 2. First AXI Transaction for the Compressed File

Figure 3. Last AXI Transaction for the Compressed File

Note: The last transaction has only 9 valid bytes, hence s_axis_tkeep signal has 9 1's in that transaction.