|Registers / GPIO Register description|
Reading these registers returns the current state of the pins read, regardless of direction, masking, or alternate functions, except that pins configured as analog I/O always read as 0s. Writing these registers loads the output bits of the pins written to, regardless of the Mask register.
|17:0||PORT0||Reads pin states or loads output bits (bit 0 = PIO0_0, bit 1 = PIO0_1, ..., bit 17 = PIO0_17). 0 = Read: pin is low; write: clear output bit. 1 = Read: pin is high; write: set output bit.||ext||R/W|
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