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There are eight LEDs on the XEM8350 in addition to the power LED.  Each is wired directly to the FPGA as shown in the table below.

LEDFPGA PIN
D0AK22
D1AM20
D2AL22
D3AL20
D4AK23
D5AJ20
D6AL23
D7AJ21

The LED anodes are connected to a pull-up resistor to +3.3 V and the cathodes wired directly to the FPGA on Bank 44 with a bank I/O voltage set by VIO2.  To turn ON an LED, the FPGA pin should be at logic ‘0’.  To turn OFF an LED, the FPGA pin should be placed in a high impedance state (logic 'Z').

 

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