SoundTraxx Tsunami Steam Technical Reference - Manual (Page 27)

Tsunami Technical Reference Page 25
set to 1.
The STE bit must be set to 1 in order to enable any of the speed curves
selected using CV 25. Otherwise, the DSD will provide a linear (straight-line)
throttle response.
The EAM bit must be set to 1 in order to activate extended address
capability. Note that once this bit is set, the decoder will respond to
commands sent to the extended address only and commands sent to the
primary address will be ignored. This can be a problem if you are using
a command station that does not support extended addressing and the
bit gets accidentally set. In such a case, you must connect the DSD to a
programming track to gain access to the CV and clear the bit.
The APS bit must be set to 1 in order to activate an alternate power mode as
set in CV 12. To activate Analog Mode Operation, you must also set CV 12 to
1.
The DSD does not support advanced acknowledgment and the ACK bit will
always read as 0.
Default value: 2
Related CVs: See also Extended Address, Loadable Speed Table.
Primary CVs