How many dedicated clock pins are there for EP20K1500EBC652 device?
I only found clk1p,clk2p,clk3p,clk4p (Pin w34, u2, y34, t2) are dedicated clock pins. However, clk1p and clk2p are connected together, clk3p and clk4p are connected together; So I can only have two different clock signals drive the internal clock trees.
According to APEX 20K Programmable Logic Device Family Data Sheet, there are "up to eight global clock signals" in the APEX 20K device. How many are there for EP20K1500 device and how can I have more than two different external clocks to drive the different internal clock trees?
thanks,
Yi Zhang ENQ Semi