Athena Project
As a starting point we found these two MPC8349 reference designs very flexible for our R&D needs. For more "fine details" on these two different reference designs shown below, refer to the Freescale web site.
On this page is a gallery of small (thumbnail) images in a grid. You will be able to expand each image to see a larger view. On some web browsers you will be able to use the slideshow features.