How to write user logic to control SOPC DMA controller?

There is no registers's addresses in the datasheet, only Register map,

it says "Programmers using the HAL API never access the DMA controller hardware directly via its registers. In general, the register map is only useful to programmers writing a device driver.The Altera-provided HAL device driver accesses the device registers directly"

Does it mean can we write them directly?

Thank you very much!

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The DMA registers' addresses are described in the DMA's datasheet. To read or write them, you need to create an Avalon master interface on your component, place the address you want to access on the address signal, perform the operation by enabling the read or write signal, and wait until wait request is 0.

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