Cyclone 3 clock pins

[Dinçay Akçören]

I have a DE0 board. There are pins named as CLKIN and CLKOUT. Can
these pins used for GPIO also or they are dedicated clock input/output
pins?

 

[Rob]

Can you read the part number printed on the chip? If so, obtaining a
data sheet is very easy.

FPGA's typically do have certain dedicated pins for clock inputs. And
in some cases there may be dedicated pll clock output pins.

Anyway, reading the data sheet should answer any/all of your questions.

Dinçay Akçören wrote:

I have a DE0 board. There are pins named as CLKIN and CLKOUT. Can
these pins used for GPIO also or they are dedicated clock input/output
pins?