Macros to check UART TX FIFO status returned by Cy_SCB_UART_GetTxFifoStatus function or assign mask for Cy_SCB_UART_ClearTxFifoStatus function.
Each UART TX FIFO status is encoded in a separate bit, therefore multiple bits may be set to indicate the current status.
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#define | CY_SCB_UART_TX_TRIGGER (SCB_INTR_TX_TRIGGER_Msk) |
| | The number of entries in the TX FIFO is less than the TX FIFO trigger level value.
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#define | CY_SCB_UART_TX_NOT_FULL (SCB_INTR_TX_NOT_FULL_Msk) |
| | The TX FIFO is not full, there is a space for more data.
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#define | CY_SCB_UART_TX_EMPTY (SCB_INTR_TX_EMPTY_Msk) |
| | The TX FIFO is empty, note there may still be data in the shift register.
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#define | CY_SCB_UART_TX_OVERFLOW (SCB_INTR_TX_OVERFLOW_Msk) |
| | An attempt to write to the full TX FIFO.
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#define | CY_SCB_UART_TX_UNDERFLOW (SCB_INTR_TX_UNDERFLOW_Msk) |
| | An attempt to read from an empty transmitter FIFO (hardware reads).
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#define | CY_SCB_UART_TX_DONE (SCB_INTR_TX_UART_DONE_Msk) |
| | All data has been transmitted out of the FIFO, including shifter.
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#define | CY_SCB_UART_TX_NACK (SCB_INTR_TX_UART_NACK_Msk) |
| | SmartCard only: the transmitter received a NACK.
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#define | CY_SCB_UART_TX_ARB_LOST (SCB_INTR_TX_UART_ARB_LOST_Msk) |
| | SmartCard only: the transmitter lost arbitration.
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