OUT register in NRF52832

[Pradeep Chl]

What is the use of OUT register in NRF52832 data sheet ? It seem OUT register is affected by changing OUTSET and OUTCLR, Can you show with an example ?

[Leon Woestenberg]

When you write a value to the OUT register, all bits are changed to the value you write to it, this is what you are expecting from a register-write.

The OUTSET register allows you to set only a selected set of bits in the OUT register. The OUTCLR register allows you to clear only a selected set of bits in the OUT register.

OUT := 0x12345678   => OUT is now 0x12345678
OUTSET := 0xF0000001 => OUT is now 0xF2345679
OUTCLR := 0xFFFF0000 => OUT is now 0x00005679