Texas Instruments Tiva TM4C123GH6PM, User Manual

Page: 265 / 352

UART
ui32IntFlags is the bit mask of the interrupt sources to be enabled.
Description:
Enables the indicated UART interrupt sources. Only the sources that are enabled can be
reflected to the processor interrupt; disabled sources have no effect on the processor.
The ui32IntFlags parameter is the logical OR of any of the following:
UART_INT_9BIT - 9-bit address match interrupt
UART_INT_OE - Overrun Error interrupt
UART_INT_BE - Break Error interrupt
UART_INT_PE - Parity Error interrupt
UART_INT_FE - Framing Error interrupt
UART_INT_RT - Receive Timeout interrupt
UART_INT_TX
- Transmit interrupt
UART_INT_RX
- Receive interrupt
UART_INT_DSR - DSR interrupt
UART_INT_DCD - DCD interrupt
UART_INT_CTS - CTS interrupt
UART_INT_RI - RI interrupt
Returns:
None.
22.2.1.29 ROM_UARTIntStatus
Gets the current interrupt status.
Prototype:
uint32_t
ROM_UARTIntStatus(uint32_t ui32Base,
bool bMasked)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_UARTTABLE
is an array of pointers located at
ROM_APITABLE[1]
.
ROM_UARTIntStatus
is a function pointer located at
ROM_UARTTABLE[19]
.
Parameters:
ui32Base is the base address of the UART port.
bMasked is false if the raw interrupt status is required and true if the masked interrupt status
is required.
Description:
This returns the interrupt status for the specified UART. Either the raw interrupt status or the
status of interrupts that are allowed to reflect to the processor can be returned.
Returns:
Returns the current interrupt status, enumerated as a bit field of values described in
ROM_UARTIntEnable() .
April 8, 2013 265