- changed IOBs settings (map -pr) on svec tdc; now no extra cycle needed in the acam_databus_interface.vhd for the ef, rd_n communication with the acam.
- added comments and architecture drawings on top of the modules 

git-svn-id: http://svn.ohwr.org/fmc-tdc@114 85dfdc96-de2c-444c-878d-45b388be74a9