On Wed, May 14, 2008 at 12:51:26PM -0400, David VanHorn wrote: > Is there any reason I can't couple two ethernet devices directly to > each other, and eliminate two sets of (seemingly) pointless magnetics? One way is to connect the two MII ports back-to-back, if one of the MACs supports going into 'Reverse MII' mode (so it appears as a PHY interface). Take care, -Chris -- | Christopher Cole, Cole Design and Development, LLC cole@coledd.com | | Embedded Software Development and Electronic Design http://coledd.com | | Stow, Ohio, USA 800-518-2154 | -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist