SPRUJ17I March 2022 – August 2025 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
In each access register mode (operational mode or configuration mode A/B), some register accesses are conditional on the programming of a submode (MSR_SPR, TCR_TLR, and XOFF). These registers are identified in Table 13-107, UART Load FIFO Triggers Defined by the Concatenated Value.
Table 13-83 through Table 13-85 summarize the register access submodes.
| Mode | Condition |
|---|---|
| MSR_SPR | (UART_EFR[4] = 0x0 or UART_MCR[6] = 0x0) |
| TCR_TLR | UART_EFR[4] = 0x1 and UART_MCR[6] = 0x1 |
| Mode | Condition |
|---|---|
| TCR_TLR | UART_EFR[4] = 0x1 and UART_MCR[6] = 0x1 |
| XOFF | (UART_EFR[4] = 0x0 or UART_MCR[6] = 0x0) |
| Mode | Condition |
|---|---|
| MSR_SPR | UART_EFR[4] = 0x0 or UART_MCR[6] = 0x0 |
| TCR_TLR | UART_EFR[4] = 0x1 and UART_MCR[6] = 0x1 |