Texas Instruments Tiva TM4C123GH6PM, User Manual

Page: 92 / 352

GPIO
Returns:
None.
10.2.1.7 ROM_GPIOIntTypeGet
Gets the interrupt type for a pin.
Prototype:
uint32_t
ROM_GPIOIntTypeGet(uint32_t ui32Port,
uint8_t ui8Pin)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_GPIOTABLE
is an array of pointers located at
ROM_APITABLE[4]
.
ROM_GPIOIntTypeGet
is a function pointer located at
ROM_GPIOTABLE[4]
.
Parameters:
ui32Port is the base address of the GPIO port.
ui8Pin is the pin number.
Description:
This function gets the interrupt type for a specified pin on the selected GPIO port. The pin
can be configured as a falling edge, rising edge, or both edge detected interrupt, or it can
be configured as a low level or high level detected interrupt. The type of interrupt detection
mechanism is returned as an enumerated data type.
Returns:
Returns one of the enumerated data types described for ROM_GPIOIntTypeSet() .
10.2.1.8 ROM_GPIOIntTypeSet
Sets the interrupt type for the specified pin(s).
Prototype:
void
ROM_GPIOIntTypeSet(uint32_t ui32Port,
uint8_t ui8Pins,
uint32_t ui32IntType)
ROM Location:
ROM_APITABLE
is an array of pointers located at
0x0100.0010
.
ROM_GPIOTABLE
is an array of pointers located at
ROM_APITABLE[4]
.
ROM_GPIOIntTypeSet
is a function pointer located at
ROM_GPIOTABLE[3]
.
Parameters:
ui32Port is the base address of the GPIO port.
ui8Pins is the bit-packed representation of the pin(s).
ui32IntType specifies the type of interrupt trigger mechanism.
92 April 8, 2013