Ds1); A 2 B Interrupt ( Ds2); User I/O Status ( Ds3) - Analog Devices EVAL-AD2437B1NZ Evaluation Board Manual

LEDs
DS11
DS6
DS5
DS1
DS3
DS2
DS10
DS12
DS8 DS9
DS4
Figure 3-4: LED Locations
3.3V ( DS1)
The 3.3V LED is driven by the voltage regulator. The LED is turned on to confirm 3.3V.
2
A B Interrupt ( DS2)
2
The A B interrupt LED is driven by the AD2437. The LED is turned on when the IRQ pin drives it high. Refer to
the HRM for further info on using interrupts.

User I/O Status ( DS3)

LED will be on when SIO2 is configured as a GPIO output and driven low.
3–8 EVAL-AD2437B1NZ Manual