srt

         Shadow RCVR Trigger
      
Module Instance Base Address Register Address
i_uart_0_uart 0xFFC02000 0xFFC0209C
i_uart_1_uart 0xFFC02100 0xFFC0219C

Offset: 0x9C

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_srt_31to2

RO 0x0

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

rsvd_srt_31to2

RO 0x0

srt

RW 0x0

srt Fields

Bit Name Description Access Reset
31:2 rsvd_srt_31to2
Reserved bits [31:2] - Read Only
RO 0x0
1:0 srt
Shadow RCVR Trigger.
This is a shadow register for the RCVR trigger bits (FCR[7:6]). 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 RCVR trigger bit gets updated.
This is used to select the trigger level in the receiver FIFO at which the Received
Data Available Interrupt will be generated. It also determines when the dma_rx_req_n
signal will be asserted when DMA Mode (FCR[3]) is set to one. The following trigger
levels are supported:
00 = 1 character in the FIFO
01 = FIFO � full
10 = FIFO � full
11 = FIFO 2 less than full
Value Description
0 ONECHAR
1 QUARTERFULL
2 HALFFULL
3 FULLLESS2
RW 0x0