This register provides the upper 32 bits of the Source Address for reading system memory for the Memory Map to Stream DMA transfer. This is applicable only when the DMA is configured for an address space greater than 32.
Figure 1. MM2S_SA_MSB Register
| Bits | Field Name | Default Type | Access Type | Description |
|---|---|---|---|---|
| 31 to 0 | Source Address | zeros | R/W | Indicates the MSB 32 bits of the source address AXI DMA reads
from to transfer data to AXI4-Stream on the MM2S
Channel. Note: If Data Realignment Engine
is included, the Source Address can be at any byte offset. If
Data Realignment Engine is not included, the Source Address must
be MM2S Memory Map data width aligned.
|