R100 is for ERR boards. They have the ability to have 100 speed steps. Standard TMCC has 32 speed steps.
Nick
What Nick Says. In addition to ERR add TAS and Digital Dynamics to the list. Basically any engine that does not have Lionel modular boards (DCDR) use Cab1 mode. Engines that do have Lionel modular boards (DCDR, DCDS) like K-Line use TMCC mode.
Pete
What about K-Line with Cruise? This description isn't very clear to me. I think it is backward. Basically ACDR and DCDR are the boards with no cruise and just 32 speed steps correct? TAS/ERR back EMF, DCDS boards all have extra speed steps. DCDS runs a very large gamut of boards. Modular is also a misnomer. TAS is a single composite mother board with the motor driver section built into the mother board but does take modular boards (R2LC and RS boards). All the AC and DC xx boards are stand alone that plug into the mother board via a wire harness vice pins.
I guess the real difference is whether the Motor driver has more than 32 speed step capability no? Any of the cruise boards usually have more, either 100 Lionel based or higher for K-Line cruise. Plus you have to factor in that these cruise boards have selectable speed steps. So you need to match the motor drive program to the Legacy selection, no? .G
