Microchip® Advanced Software Framework

Human interface on XMEGA-A3BU Xplained:

• 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 Keyboard interface
• Red LED (Led 2) close to USB connector displays numeric lock status.
• Green LED (Led 3) close to USB connector displays caps lock status.
• SW0 Push Button open a note pad application Windows O.S. and send key sequence "Atmel AVR USB Keyboard"
• SW0 Push Button can be used to wakeup USB Host in remote wakeup mode.