Need for two different I/O voltages on the same bank

I guess there's no solution for that, but I wanted to give a try anyway. So my situation is below.

I'm using DE2-115 together with a Terasic LTM module on the GPIO port and a Texas Instruments acquisition evaluation module on the HSMC port.

LTM module uses a 3.3 V I/O standard, or at least I'm supposing it, since its user manual doesn't mention it explicitly, but it seems to use a 3.3 V power supply (anyway it's already working with 3.3 V I/O, so I'm pretty sure about that's its standard). So I had to set my JP6 jumper in the 3.3 V correspondent position.

At the same time, I would need a 1.8 V clock signal on the SMA out connector to use with the TI EVM. Unfortunately, the FPGA pin connected to the SMA_CLKOUT is on the same bank of GPIO pins (bank 4), so I'm actually having a 3.3 V I/O standard on it.

Is there anything I can try to overcome the problem? What would you do?

Regards,

Lorenzo