Forum Discussion

JHari's avatar
JHari
Icon for New Contributor rankNew Contributor
6 years ago

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

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 b...
a_x_h_75's avatar
a_x_h_75
Icon for Contributor rankContributor
6 years ago

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