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