DescriptionResetTypeNameBit/Field
GPIO Commit
DescriptionValue
The corresponding GPIOAFSEL, GPIOPUR, GPIOPDR, or
GPIODEN bits cannot be written.
0
The corresponding GPIOAFSEL, GPIOPUR, GPIOPDR, or
GPIODEN bits can be written.
1
Note: The default register type for the GPIOCR register is RO for
all GPIO pins with the exception of the NMI pin and the four
JTAG/SWD pins (see “Signal Tables” on page 1772 for pin
numbers). These six pins are the only GPIOs that are
protected by the GPIOCR register. Because of this, the
register type for the corresponding GPIO Ports is RW.
The default reset value for the GPIOCR register is
0x0000.00FF for all GPIO pins, with the exception of the NMI
and JTAG/SWD pins (see “Signal Tables” on page 1772 for pin
numbers). To ensure that the JTAG and NMI pins are not
accidentally programmed as GPIO pins, these pins default to
non-committable. Because of this, the default reset value of
GPIOCR changes for the corresponding ports.
--CR7:0
785June 18, 2014
Texas Instruments-Production Data
Tiva
™
TM4C1294NCPDT Microcontroller
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