USART0 configuration
| RESERVED | Reserved. Read value is undefined, only zero should be written. |
| TIMEOUTCONTONWRITE | Timeout Continue On Write. When 0, the timeout for the related peripheral is reset every time data is transferred from the peripheral into the receive FIFO. When 1, the timeout for the related peripheral is not reset every time data is transferred into the receive FIFO. This allows the timeout to be applied to accumulated data, perhaps related to the FIFO threshold. |
| TIMEOUTCONTONEMPTY | Timeout Continue On Empty. When 0, the timeout for the related peripheral is reset when the receive FIFO becomes empty. When 1, the timeout for the related peripheral is not reset when the receive FIFO becomes empty. This allows the timeout to be used to flag idle peripherals, and could potentially be used to indicate the end of a transmission of indeterminate length. |
| RESERVED | Reserved. Read value is undefined, only zero should be written. |
| TIMEOUTBASE | Specifies the least significant timer bit to compare to TimeoutValue. See Section 24.5.7.1 below. Value can be 0 through 15. |
| TIMEOUTVALUE | Specifies the maximum time value for timeout at the timer position identified by TimeoutBase. Minimum time TimeoutValue - 1. is See Section 24.5.7.1 below. TimeoutValue should not be 0 or 1 when timeout is enabled. |
| RXTHRESHOLD | Receive FIFO Threshold. The System FIFO indicates that the threshold has been reached when the number of entries in the receive FIFO is greater than this value. For example, when RxThreshold = 0, the threshold is exceeded when there is at least one entry in the receive FIFO. An interrupt can be generated when the RxThreshold has been reached (see Section 24.5.10), but has no effect on DMA requests, which are generated whenever the receiver FIFO is not empty. |
| TXTHRESHOLD | Transmit FIFO Threshold. The System FIFO indicates that the threshold has been reached when the number of free entries in the transmit FIFO is less than or equal to this value. For example, when TxThreshold = 0, the threshold is exceeded when there is at least one free entry in the transmit FIFO. An interrupt can be generated when the TxThreshold has been reached (see Section 24.5.10), but has no effect on DMA requests, which are generated whenever the transmit FIFO has any free entries. |