Pixel Buffer Back Buffer start address and resolution

Hi All

I'm using the VIP Core to Display drawings on a monitor.

Therefore, I'm using a Pixel Buffer with a resolution of 1280 x 960.

On which value do I have to set the back buffer start address?

Respectively, how large can I go with the resolution when I use the SRAM from the DE2-115 board?

How is the relation between the resolution and the back buffer start address?

Thank you for clarifying me these questions.

Ben