DMARDLR
DMA Receive Data Level.
This register is only valid when DW_apb_ssi is configured with a set of
DMA interface signals (SSI_HAS_DMA = 1). When DW_apb_ssi is not configured
for DMA operation, this register will not exist and writing to its address
will have no effect; reading from its address will return zero.
Module Instance | Base Address | Register Address |
---|---|---|
i_spis_0_ssi_address_block | 0xFFDA2000 | 0xFFDA2054 |
i_spis_1_ssi_address_block | 0xFFDA3000 | 0xFFDA3054 |
Size: 32
Offset: 0x54
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_DMARDLR RO 0x0 |
|||||||||||||||
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
RSVD_DMARDLR RO 0x0 |
DMARDL RW 0x0 |
DMARDLR Fields
Bit | Name | Description | Access | Reset |
---|---|---|---|---|
31:8 | RSVD_DMARDLR |
Reserved bits - Read Only |
RO | 0x0 |
7:0 | DMARDL |
Receive Data Level. This bit field controls the level at which a DMA request is made by the receive logic. The watermark level = DMARDL+1; that is, dma_rx_req is generated when the number of valid data entries in the receive FIFO is equal to or above this field value + 1, and RDMAE=1. |
RW | 0x0 |