TM4C123GXL GPIO – lock the configurations of the NMI and JTAG-SWD pins on the GPIO port

GPIO – Lock the configurations of the NMI and JTAG-SWD pins on the GPIO

Optionally, you can lock the configurations of the NMI and JTAG/SWD pins on the GPIO port pins by setting the LOCK bits in the GPIOLOCK register.

 

 

 

 

 

 

Bit/Field	Name	Description
31:0	LOCK	GPIO Lock A write of the value 0x4C4F.434B unlocks the GPIO Commit (GPIOCR) register for write access. A write of any other value or a write to the GPIOCR register reapplies the lock, preventing any register updates. A read of this register returns the following values: 0x1: The GPIOCR register is locked and may not be modified. 0x0: The GPIOCR register is unlocked and may be modified.