HSMC LVDS pin direction.

[Altera_Forum]

I have a simple question regarding the LVDS on the HSMC connectors. I'm using Stratix-III development kit. 

 Can the LVDS pins be defined as either input or output? Or are they "locked" into a particular direction?  Please advise, thanks in advance,

[Altera_Forum]

Stratix families have dedicated LVDS RX and TX pins, so the assignament can't be changed.

[Altera_Forum]

Thank you for your reply. 

 OK, just for further clarification: so the Stratix-III pin AC11 connected to HSMC J18 pin 47 defined as HSMA_TX_P0, can ONLY be an LVDS output or redefined as a CMOS Input/Output 2.5V pin?  Tschuess!

[Altera_Forum]

You have been asking for LVDS direction. All LVDS pins can be also used as single ended in- or ouput pin.