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Basic Programming

Step 5: Function Mapping

Function Mapping Explained

Function mapping allows the DSD to be reconfigured so that sound effects and function outputs can respond to a different function key input. This is especially useful for users who have throttles with less than thirteen function keys as now they can pick and choose what effects they can control instead of being restricted to an arbitrary assignment.

There are 14 function mapping CVs - twelve CVs, 35-46 are used to assign output control to function keys 1 through 12 respectively.

The other two CVs, 33 and 34 are both for the F0 function. CV 33 controls which outputs are on when F0 is on and the locomotive is moving forward. CV 34 controls which outputs are on when F0 is on and the locomotive is moving in reverse. If the same output is selected in both CV 33 and CV 34, that function will turn on when the F0 function is on regardless of locomotive direction.

Not all keys can control all outputs or effects. The table below shows which functions can be mapped to which outputs. Note that a function key can be set up to control more than one output.

Table F. Function Mapping Table

Function Key

Control CV

HL

BL

WH

BEL

FX5

FX6

DYN

SHW

STM

WS

DIM

MUT

INJ

BRK

CPL

F0 (f)

33

F0 (r)

34

F1

35

F2

36

F3

37

F4

38

F5

39

F6

40

F7

41

F8

42

F9

43

F10

44

F11

45

F12

46

1

2

4

8

1

2

4

8

1

2

4

8

1

2

4

8

1 1 1 1

X

Bold Numbers indicate default settings.

16

32

64

128

16

32

64

128

X

16

32

64

128

X

16

32

64

128

X

2

4

8

16

32

2

4

8

16

32

2

4

8

16

32

1

2

4

8

16

1

2

4

8

16

1

2

4

8

16

16

32

64

16

32

64

16

32

64

16

32

64

2

4

8

2

4

8

2

4

8

2

4

8

1

X

X

1

128 128 128 128

64

128

64

128

64

128

32

64

32

64

32

64

1

128 128 128

Tsunami Steam Sound User’s Guide

Page 24

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