Multi Channel DMA Intel® FPGA IP for PCI Express User Guide

ID 683821
Date 1/14/2022

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Document Table of Contents Avalon-ST 1-Port Mode

When you select AVST 1 port mode, the IP provides 1 AVST Source and Sink port for DMA. In this mode, you can enable up to 2K DMA channels.

Table 18.  IP Parameters specific to D2H Descriptor Fetch in Avalon-ST 1 Port Mode
IP GUI Parameter Description Value for MCDMA
D2H Prefetch Channels Number of prefetch channels 8, 16, 32, 64, 128, 256
Maximum Descriptor Fetch Number of descriptors that can be fetched for each prefetch channels 16, 32, 64
Note: When the total number of channels selected is greater than 256, then D2H Prefetch channels are fixed to 64.

For details about these parameters, refer to the D2H Data Mover section.