SoundTraxx Tsunami Steam Technical Reference - Manual (Page 14)

Tsunami Technical Reference Page 12
CV 15
CV Unlock Register
Description
Contains a value from 0-7 that is used to unlock access to the decoder’s CVs
in a multi-decoder installation.
CV 15 may always be written or verified regardless of the decoder’s lock
status. An acknowledgment will only be generated, however, when the
decoder is unlocked.
D0-D2: Unlock Code
Locked State
If CV 15 does not match CV 16, all read and write operations to the
decoder will be ignored and no acknowledgment is generated.
Unlocked State
Access to the decoder’s CVs occurs only when CV 15 = CV 16.
Note: CVLCKE Bit in CV 30 must be set to enable the lock feature in CVs
15 and 16.
Default value: 0
Related CVs: See also Error Information/Alternate Mode Selection.
Primary CVs
Bit 7 Bit 0
0 0 0 0 0 D2 D1 D0