As new techniques for applying biological processes to the development of computer hardware reach maturity, the EMBRYONICS (for embryonic electronics) project gains in complexity and flexibility of use. New features, such as the capability to more efficiently store data, have lately been added to MUXTREE® (for multiplexer tree) - our electronic molecule. A side effect to the flexibility added to the new molecule is the need for different binary configurations in order to differentiate the possible operating modes. This document is intended as a summary of the final specifications of MUXTREE® necessary to be able to effectively use the molecules as a programmable circuit.