Dear AMI experts, I cleaned up the spreadsheet with the truth table that we discussed in our ATM meeting today. It looks like this now: <<Picture (Device Independent Bitmap)>> I hope I got it right this time. The next thing I would like to do is to extend this table and spell out how these conditions can be applied to Tx and Rx independently. In other words, I don't believe that our intent was to require these Booleans to be the same for both Tx and Rx. But how many combinations are valid? We have four (4) combinations per buffer, and we have two buffers, which could theoretically allow 4^2 = 16 total possibilities. Are they all valid? <<Picture (Device Independent Bitmap)>> Thanks, Arpad ============================================================