STK1000/Video DAC and VGA connector
From AVRFreaks Wiki
The VGA subsystem let you try out applications that use a VGA monitor as output. This is useful if you are developing a multimedia application that use VGA output. The LCD interface on AVR32 is used to directly drive a video DAC.
The VGA connector is located to the left of the LCD screen. The Video DAC is located below the LCD screen.
Block diagram
Signals
The Hsync and Vsync signals are buffered by two inverters before connected to VGA connector. The buffers ensure that monitors connected to the VGA connector does not affect the VSYNC and HSYNC signals on STK1000 as this would lead to flickering on the on board LCD screen.
Interfaces
Refer the help files of the daughter board to find out what interfaces are used and which peripheral on the processor are connected to the interface.