Does anyone know the resistance of the resistor ladder in Comp_B? An order-of-magnitude would be good.
What is its accuracy? (I presume it's got good tap-to-tap consistency but poor absolute resistance)
It appears from the data sheet that the top of the chain can be left unconnected and a tap connected to a selected CB pin. Is this correct?
With the top of the chain connected, can Comp_B be used as a simple 5-bit DAC / variable potential divider?
The 5xx/6xx data sheets and user guides don't seem to have these values.