SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
Table 13-80 lists the TX FIFO trigger level settings.
SCR[6] | TLR[3:0] | TX FIFO Trigger Level |
---|---|---|
0 | = 0x0 | Defined by the UART_FCR[5-4] TX_FIFO_TRIG bit field (8,16, 32, or 56 spaces) |
0 | != 0x0 | Defined by the UART_TLR[3-0] TX_FIFO_TRIG_DMA bit field (from 4 to 60 spaces with a granularity of 4 spaces) |
1 | Value | Defined by the concatenated value of TLR[3:0] (higher bits) and FCR[5:4] (lower bits) from 1 to 63 spaces with a granularity of 1 space. |
Note: The combination of TLR[3:0]=0000 and FCR[5:4]=00 (all zeros) is not supported (min 1 space required). All zeros will result in unsupported behavior. |