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What is the function of DMA address register?

  Shared By: Jack Bouchard    Date: Jan 11    Category: Assembly Language    Views: 2762

Answer:

Each DMA channel has one DMA address register. The function of this register is to store the address of the starting memory location, which will be accessed by the DMA channel. Thus the starting address of the memory block that will be accessed by the device is first loaded in the DMA address register of the channel. Naturally, the device that wants to transfer data over a DMA channel, will access the block of memory with the starting address stored in the DMA Address Register.

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