I think ADC 9,10,11 and 12 expose the raw μC ADC pins.
The other 8 I believe are pins CV 1 to 8, i.e. C2 to C9. These will have their signals conditioned from eurorack levels down to levels compatible with the μC ADC pins.
I wanted to also use the C1 to C10 for control voltages as they are described on the schematic - I guess I only need 4 CV’s. Which would leave me needing another 4 analogue inputs.
If I want to add more analogue ins than the module allows can I do this by adding a multiplexer to one of the μC ADC pins?