sdmam
Shadow DMA Mode.
| Module Instance | Base Address | Register Address |
|---|---|---|
| i_uart_0_uart | 0xFFC02000 | 0xFFC02094 |
| i_uart_1_uart | 0xFFC02100 | 0xFFC02194 |
Offset: 0x94
Access: RW
Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
| Bit Fields | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
rsvd_sdmam_31to1 RO 0x0 |
|||||||||||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
rsvd_sdmam_31to1 RO 0x0 |
sdmam RW 0x0 |
||||||||||||||
sdmam Fields
| Bit | Name | Description | Access | Reset | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 31:1 | rsvd_sdmam_31to1 | Reserved bits [31:1] - Read Only |
RO | 0x0 | ||||||
| 0 | sdmam | Shadow DMA Mode. This is a shadow register for the DMA mode bit (FCR[3]). This can be used to remove the burden of having to store the previously written value to the FCR in memory and having to mask this value so that only the DMA Mode bit gets updated. This determines the DMA signalling mode used for the dma_tx_req_n and dma_rx_req_n output signals when additional DMA handshaking signals are not selected (DMA_EXTRA == NO). See section 5.9 on page 54 for details on DMA support. 0 = mode 0 1 = mode 1
|
RW | 0x0 |