i was reading Data sheet of SAMD20J18 MCU and at page 299 they have said
"Changes in this (DIRCLR) register will also be reflected in the Data Direction (DIR), Data Direction Toggle (DIRTGL) and Data
Direction Set (DIRSET) registers."
can you explain me what changes will be there in register DIR, DIRTGL and DIRSET resisters."
for ex:- Let i write
DIRCLR = 0xFF;
now, how this above statement is going to effect DIR,DIRSET, DIRTGL