Cyclone IV GX dev kit HSMC connection buned MAXII BGA chip

Hi all,

for C4GX dev kit HSMC port A, pin 96 (HSMA_CLK_IN_P1), 98 (HSMA_CLK_IN_N1), 156 (HSMA_CLK_PIN_P2), 158 (HSMA_CLK_IN_N2), I would like to use these 4 pins as output.

In c4gx reference manual, pg40, Table 2-32, it describes these pins as e.g. LVDS or CMOS clock in 1 or CMOS bit 37.

How or what configuration I need in order to use these clocks input pins as normal general purpose output pin?

thank you