Enable Micro DMA - 7.1 English

AXI DMA LogiCORE IP Product Guide (PG021)

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7.1 English

Checking this option generates a highly optimized DMA which is low on resource count. This setting can be used for applications that transfer a very small amount of data. Program the DMA based on the configuration selected. For example, the maximum bytes that can be transferred per transaction or per BD cannot exceed the following:

MMap Data_width * Burst_length/8.

Similarly the 4K boundary check is also not implemented in this mode restricting addressing to burst boundaries.