dmatdlr
Controls DMA Transmit FIFO Threshold
| Module Instance | Base Address | Register Address |
|---|---|---|
| spis0 | 0xFFE02000 | 0xFFE02050 |
| spis1 | 0xFFE03000 | 0xFFE03050 |
Offset: 0x50
Access: RW
Important: To prevent indeterminate
system behavior, reserved areas of memory must not be accessed by software or
hardware. Any area of the memory map that is not explicitly defined as a register
space or accessible memory is considered reserved.
| Bit Fields | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
Reserved |
|||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved |
dmatdl RW 0x0 |
||||||||||||||
dmatdlr Fields
| Bit | Name | Description | Access | Reset |
|---|---|---|---|---|
| 7:0 | dmatdl | This bit field controls the level at which a DMA request is made by the transmit logic. It is equal to the watermark level; that is, the dma_tx_req signal is generated when the number of valid data entries in the transmit FIFO is equal to or below this field value, and TDMAE = 1. |
RW | 0x0 |