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Decoder firmware version 3.3 CV list

CV1 short decoder address; 1-127 valid
CV2 Start Voltage (useful range 0-100)
CV3 acceleration rate (each unit = 7mS between speed steps) 255 max.
CV4 deceleration rate (each unit = 7mS between speed steps) 255 max.
CV5 Vmax, speed at highest speed step. 0=use factory default of 255
CV6 Vmid, speed (on a scale of 1-255) at speed step 7,14,or 63. 0=use default of 128
CV7 Manufactuer ID. NCE = 11 (0B hex)
CV8 Decoder version number. This decoder is 33 which means version 3.3
CV9 Motor drive frequency
- 1-255 = PWM drive frequency period in 128uS increments,
- 0 = PWM frequency is 15,625 Hz
CV17 High byte of long (4 digit) address
- bit 6,7 always= 1
- bits 0-5 are upper 6 bits of address
CV18 low byte of long (4 digit) address
CV19 Consist address. (0 or 128 = no consist active)
- bits 0-6 short consist address (1-127 valid)
- bit 7 0= direction is normal, 1= direction is reversed
CV21 Functions active in consist mode. Bit 0 controls F1
- bit 0 - 1=function can be controlled at consist address, 0 = no consist control
CV22 Functions active in consist mode. Bits 0,1 control FLF and FLR respectively
- each bit 1=function can be controlled at consist address, 0 = no consist control
CV23 acceleration rate adjust (in 7mS increments) this value is added to CV3
CV24 deceleration rate adjust (in 7mS increments) this value is added to CV4
CV29 - bit 0 1= direction of operation is reversed, 0= direction is normal
- bit 2 1= analog operation mode enabled, 0 = disabled
- bit 4 1= alternate speed table active, 0= use table defined by CV2,5,6
- bit 5 1= use long address in CV17/18, 0= use short address CV1
- bits 1,3,6,7 are ignored by the decoder
CV33-CV35 function mapping CVs for F0-F1
CV65 Kick start - number of 1/1000s of a second to ‘kick’ motor when starting
CV67-CV94 Uploadable speed table steps 1-28 (128 speed mode calcu lates intermediate steps)
CV118 Ditch light hold time (in ¼ second increments) after F2 goes off.
CV119 Lighting effects page. Must be set to 255 for access to CVs120-127
CV120-CV122 Effects configuration registers for outputs 1-3

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