This register provides the MSB 32 bits of source address for Simple DMA transfers by AXI CDMA. This is applicable only when the address space is more than 32 bits.
Figure 1. SA_MSB Register
| Bits | Field Name | Default Value | Access Type | CDMA Mode Used | Description |
|---|---|---|---|---|---|
| 31 to 0 | SA | 0 | R/W | Simple | Source Address Register. This register is used by Simple DMA
operations (CDMACR.SGMode = 0) as the starting read address for DMA data transfers.
The address value written can be at any byte offset. The software application must only write to this register when the AXI CDMA is idle (CDMASR.IDLE = 1). |
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