Welcome to the Intel® Embedded Design Center (EDC) community. Schematics and other technical documentation for Intel® Atom are available in the EDC. You can find them here:
However, access to these documents requires that your community membership be "private" status. If you did not already request private status when you registered with the community, you may request an upgrade at the following URL. Note that it may take a few days to process your request.
By the way, private status also provides you with access to the Intel® e-Help desk where Intel representatives are dedicated to answering technical questions about Intel's latest platforms, including Atom.