I read here at page 4:
"Dedicated global clock input pins that can also be used for
the positive terminal inputs for differential global clock input
or user input pins. When these clock input pins are used as
single-ended pins, you can disregard the p notation.
CLK[0..7]p pins can function as regular I/O pins. "
What does it mean?
It is said that if the clock pin is not used as a dedicated pin, it can be used as an INPUT pin.
In the next sentence, it says it can function as a regular I/O pin.
But doesn't "I/O" mean Input and Output?