TM4C123 GPIOLOCK Register

Mahendra Gunawardena

Other Parts Discussed in Thread: TM4C123GH6PM

On page 681 of the TM4C123GH6PM document says to enable write access to GPIOCR, GPIOLOCK needs to be set to 0x4C4F.434B.

Can someone explain how the above was derived?

Thanks

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244400 points

Hi Mahendra

It could have been any 32-bit value. The only reason why it is this particular value is that each byte of the 32-bit string when looked up in a ASCII Mapping Table will give you the work "LOCK"

Regards

Amit

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TM4C123 GPIOLOCK Register