DMA Programming Model

Versal ACAP Technical Reference Manual (AM011)

Document ID
AM011
Release Date
2022-04-26
Revision
1.4 English

The DMA mode reads data from the flash device and writes the data to system memory.

The main memory address is defined by [ADDRESS]. The DMA writes data for a length of [SIZE]. After software starts a DMA transfer, the software normally waits for an interrupt.

DMA Mode

Software sets up the DMA transfer and interrupt. It sends a controller command to initiate the transfer. To define the SPI command (for opcode, address, etc), the software writes multiple controller commands using the immediate field.