DRA821U: Register UART_ EFR2

Time-out Counter and UART_ EFR2 description is shown in the figure：

question 1:  If UART_EFR2[6](TIMEOUT_BEHAVE) = 1, whether the time-out counter in the figure refers to the values of UART_TIMEOUTL and UART_TIMEOUTH？

question 2:  If UART_EFR2[6](TIMEOUT_BEHAVE) = 0, the time-out period for the UART time-out interrupt is equal to4x the programmed word length + 12 bits in the figure.

question 3:   Because of the write operation to register UART_EFR2 [6] during UART initialization, it was found that UART crash，

                     So what are the conditions for writing to register UART_EFR2？

Shine：

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Shine：

请看下面e2e工程师的回复。

1) Yes, the value is the 16-bit combination of the two fields:

TIMEOUT_L – Custom timeout period in baud clocks, to override the internal value, when different from 0. [Lower byte of the 16 bit value]TIMEOUT_H – Custom timeout period in baud clocks, to override the internal value, when different from 0. [Higher byte of the 16 bit value]

2) Correct

3) Please refer to a TI driver for example of the correct programming sequence.