There are eight LEDs on the XEM6010.  Each is wired directly to the FPGA according to the pin mapping table below.

LEDFPGA Pin
D2Y17
D3AB17
D4AA14
D5AB14
D6AA16
D7AB16
D8AA10
D9AB10

The LED anodes are connected to a pull-up resistor to +3.3VDD and the cathodes wired directly to the FPGA on Bank 2 with a bank I/O voltage of 3.3v.  To turn ON an LED, the FPGA pin should be brought low.  To turn OFF an LED, the FPGA pin should be at logic ‘1’.