The three address fields work out to the stored 'short' address (CV1), the
stored 'long' address (CV17+CV18), and the 'effective' address that is the
one the decoder responds to. Also there is a funny formula for how CV17 and
CV18 combine to make that 'long' address.
-Ken Cameron, Member JMRI Dev Team
www.jmri.org
www.fingerlakeslivesteamers.org
www.cnymod.com
www.syracusemodelrr.org
Ken Cameron