Uart event mode

This is the data type used for specifying UART events. An event is the occurrence of an interrupt which must be handled appropriately. One of these events is passed at a time to the user listener function to be processed. The exception to this are the UART_EVENT_THR_EMPTY and UART_EVENT_TIMEOUT interrupts which are handled internally by the interrupt handler. More...

Collaboration diagram for Uart event mode:

Typedefs
typedef enum UART_Event	UART_EventDef

Enumerations
enum	UART_Event {   UART_EVENT_MODEM = 0x0 , UART_EVENT_NONE = 0x1 , UART_EVENT_THR_EMPTY = 0x2 , UART_EVENT_DATA = 0x4 ,   UART_EVENT_LINE = 0x6 , UART_EVENT_TIMEOUT = 0xc }

Detailed Description

This is the data type used for specifying UART events. An event is the occurrence of an interrupt which must be handled appropriately. One of these events is passed at a time to the user listener function to be processed. The exception to this are the UART_EVENT_THR_EMPTY and UART_EVENT_TIMEOUT interrupts which are handled internally by the interrupt handler.

Typedef Documentation

UART_EventDef

typedef enum UART_Event UART_EventDef

Enumeration Type Documentation

UART_Event

enum UART_Event

Enumerator
UART_EVENT_MODEM	CTR, DSR, RI or DCD status changed.
UART_EVENT_NONE	No event/interrupt pending.
UART_EVENT_THR_EMPTY	Transmit holding register empty or TX FIFO at or below trigger threshold.
UART_EVENT_DATA	Receive buffer register data available (non-FIFO mode) or RX FIFO trigger level reached.
UART_EVENT_LINE	Overrun/parity/framing error or break interrupt occurred.
UART_EVENT_TIMEOUT	No characters in or out of the receiver FIFO during the last four character times.