Human interface on UC3C_EK :
- PWR led is on when power present
- Led 0 is on when USB OTG cable is plugged and Vbus is present
- Led 1 is continuously on when a device is connected
- Led 1 blinks when the device is enumerated and USB in idle mode
- The blink is slow (1s) with low speed device
- The blink is normal (0.5s) with full speed device
- The blink is fast (0.25s) with high speed device
- Led 2 is on when a read or write access is on going
- Led 3 is on when a LUN test is success
- Led 3 blinks when a LUN test is unsuccessful
- Switch PB0 allows to enter the device in suspend mode with remote wakeup feature authorized
- Only PB1 button can be used to wakeup USB device in suspend mode