Human interface on EVK1101 :
- Led 0 is on when USB line is in IDLE mode, and off in SUSPEND mode
- Led 1 blinks when USB host has checked and enabled HID and MSC interfaces
- Led 2 is on during read or write operation
- Led 3 displays caps lock status.
- The PB0 open a note pad application on Windows O.S. and send key sequence "Atmel AVR USB Keyboard"
- The PB0 can be used to wakeup USB Host in remote wakeup mode.