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.
Macros | |
#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. | |
#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. | |
#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. More... | |
#define | CY_SCB_UART_TX_OVERFLOW (SCB_INTR_TX_OVERFLOW_Msk) |
An attempt to write to the full TX FIFO. | |
#define | CY_SCB_UART_TX_UNDERFLOW (SCB_INTR_TX_UNDERFLOW_Msk) |
An attempt to read from an empty transmitter FIFO (hardware reads). More... | |
#define | CY_SCB_UART_TX_DONE (SCB_INTR_TX_UART_DONE_Msk) |
All data has been transmitted out of the FIFO, including shifter. | |
#define | CY_SCB_UART_TX_NACK (SCB_INTR_TX_UART_NACK_Msk) |
SmartCard only: the transmitter received a NACK. | |
#define | CY_SCB_UART_TX_ARB_LOST (SCB_INTR_TX_UART_ARB_LOST_Msk) |
SmartCard only: the transmitter lost arbitration. | |
#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.
#define CY_SCB_UART_TX_UNDERFLOW (SCB_INTR_TX_UNDERFLOW_Msk) |
An attempt to read from an empty transmitter FIFO (hardware reads).