The Cadence/SiSoft presentation given by Todd yesterday is posted: http://www.vhdl.org/pub/ibis/macromodel_wip/archive/20070202/toddwesterh off/Updated_Algorithmic_Modeling_Proposal_for_SERDES_Tx_and_Rx.zip If the link give you trouble go to the IBIS-ATM web page and click Archive: http://www.vhdl.org/pub/ibis/macromodel_wip Mike