Sets all special function control bits. <bit-mask> is an 8-bit
mask expressed as 2 hex digits. This value should be in the
range 00-FF. The mask is encoded as follows:
7 6 5 4 3 2 1 0
GPIO8 GPIO7 GPIO6 GPIO5 GPIO4 GPIO3 GPIO2 GPIO1
A value of 1 enables the special function on the
corresponding GPIO signal, a value of 0 disables the special
function. For example, a hex value of 80 sets GPIO8 for a
special function, all other GPIO signals for general use.
NOTE: The special function bit configuration is not changed
by a configuration reset to default. This command has no
effect on GPIO 1 and 2, which do not have special functions.
Komentarze do niniejszej Instrukcji