DLPU040C October 2016 – July 2024 DLP650LNIR , DLPC410
D2 is an LED which indicates the APPSFPGA is currently being configured from the Xilinx PROM. D2 is turned on when the APPSFPGA DONE pin is low, [not DONE]. Once the APPSFPGA is completely configured, the APPSFPGA DONE pin goes high and this LED turns OFF.
When the APPSFPGA DONE pin goes high indicating the APPSFPGA completed programming successfully and the APPSFPGA is up and running, the green LED D16 is turned on by internal logic with the enabling of the FPGA IO. This logic is to be defined by the application, although the logic can be a DCM lock monitor or a heart beat indicating clocks are operating. The default load drives with a simple high to turn the green LED on.