Can DIFFCLK pins be used as Input Signals for Cyclone IV E device?

[JHari]

We are using Cyclone IV Device with part no. EP4CE15F23C8N. We want to use the DIFFCLK_xn/p pins as input pin (to read interrupts) and use this information to implement a logic.  

Can DIFFCLK pins be used as Input Signals for Cyclone IV E device?

[a_x_h_75]

Yes they can. By default these are the standard dedicated clock input pins and yes, they can be routed to allow them to be read.

FYI - it's pretty quick to create a project, assign one of your input signals to one of these dedicated clock inputs and have Quartus tell you the answer...

Cheers,

Alex

[Rahul_S_Intel1]

Hi Prakash, You can use the DIFFCLK_xn/p, only concern to check is that the pin is an GPIO pin. If it is GPIO pin you can connect. And for making sure, make a sample project and assign the IO pins. If there is any issue Quartus will throw error