GPIO
Description:
The analog comparator input pins must be properly configured for the analog comparator to
function correctly. This function provides the proper configuration for those pin(s).
The pin(s) are specified using a bit-packed byte, where each bit that is set identifies the pin to
be accessed, and where bit 0 of the byte represents GPIO port pin 0, bit 1 represents GPIO
port pin 1, and so on.
Note:
This cannot be used to turn any pin into an analog comparator input; it only configures an
analog comparator pin for proper operation.
Returns:
None.
10.2.1.16 ROM_GPIOPinTypeGPIOInput
Configures pin(s) for use as GPIO inputs.
Prototype:
void
ROM_GPIOPinTypeGPIOInput(uint32_t ui32Port,
uint8_t ui8Pins)
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_GPIOPinTypeGPIOInput is a function pointer located at ROM_GPIOTABLE[14].
Parameters:
ui32Port is the base address of the GPIO port.
ui8Pins is the bit-packed representation of the pin(s).
Description:
The GPIO pins must be properly configured in order to function correctly as GPIO inputs. This
function provides the proper configuration for those pin(s).
The pin(s) are specified using a bit-packed byte, where each bit that is set identifies the pin to
be accessed, and where bit 0 of the byte represents GPIO port pin 0, bit 1 represents GPIO
port pin 1, and so on.
Returns:
None.
10.2.1.17 ROM_GPIOPinTypeGPIOOutput
Configures pin(s) for use as GPIO outputs.
Prototype:
void
ROM_GPIOPinTypeGPIOOutput(uint32_t ui32Port,
uint8_t ui8Pins)
98 April 8, 2013
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