SoundTraxx DSD-150/DSX Technical Reference - Manual (Page 20)

Address Mode Direct Mode
Register Mode Ops Mode Short Form
Paged Mode Ops Mode Long Form
20 Digital Sound Decoder Technical Reference
down locomotives that have a “slot car” response.
Setting this CV to a value between 16 and 31 (0x10-0x1F) will enable the speed curve pro-
grammed into CVs 67-94. This curve may modified by the user to get virtually any response
desired.
Note that in order for the selected curve to be active, bit 4 of CV 29 must also be set to 1. If CV 29,
bit 4 is 0, the throttle response will be linear (straight line).
The speed curves can be used in 14, 28 and 128 speed step modes.
Bit 7 is defined by the NMRA RPs as the Mid Range Speed Step select bit. The DSD does not
implement this feature and will ignore commands that attempt to program this bit with a 1 (i.e.,
data values between 128-255 or 0x80-0xFF).
Default value: 0
Related CVs: See also CV 29, Loadable Speed Table.
100%
75%
50%
25%
0%
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
LOG 7
LOG 5
LOG 6
LOG 3
LOG 2
LOG 1
LOG 4
LINEAR
EXP 1
EXP 2
EXP 3
EXP 4
EXP 5
EXP 6