Forum Discussion
Altera_Forum
Honored Contributor
13 years ago --- Quote Start --- To define the input clock as single-ended, just assign it as an input with 2.5V LVCMOS logic level, or 3.3V logic level, whatever is appropriate for that I/O bank (check the schematic to ensure you use the right setting). --- Quote End --- I can only fine 3.3V LVCMOS but not 2.5V LVCMOS in the list. Also, besides 3.3V LVCMOS, level 3.3V LVTTL is usable for single-ended signal? Thanks