Power LEDs

The XEM8370 includes two LED indicators for power status.

LEDON CONDITION
PWR IN (D11)+VDCIN present, no over-voltage or reverse voltage faults
PWR GOOD (D12)All on-board power supplies active and within expected range
(Does not include VIOx supplies)

User LEDs

There are eight LEDs, each of which is controlled by FPGA pins as shown in the table below.

LEDFPGA PIN
D1E20
D2F20
D3G20
D4E21
D5F23
D6G24
D7F24
D8F25
FPGA PIN TO LED MAPPING

The LED anodes are connected through a current limiting resistor to +3.3 V and the cathodes wired through NMOS transistors to the FPGA I/O on Bank 70. To turn ON an LED, the FPGA pin should be at logic 1.  To turn OFF an LED, the FPGA pin should be at logic 0.

XEM8370 LED Connection