This value provides control for the AXI CDMA transfer.
Figure 1. Transfer Descriptor CONTROL Word
| Bits | Field Name | Description |
|---|---|---|
| 31 to 26 | Reserved | These bits are reserved and must be set to zero. |
| 25 to 0 | BTT | Bytes to Transfer This field in the Control word specifies the desired number of bytes to DMA from the Source Address to the Destination Address. A maximum of 67,108,863 bytes of data can be specified by this field for the associated transfer. A value of zero (0) is not allowed and causes a DMA internal error to be set by AXI CDMA. |