The Analog HW Mux component needs 4 bits to select one input out of 8, So you will need a control register of width 5 to select your signal out of more than 8 inputs.
Thanks for your anser, Bob. But is this true for analog switch? Component switch automatically no. of lines required to 9 if i do increase number of inputs to 9.
I assumes in following description that PSoC 3/5LP is used to implement a multiplexer. If you are going to use a PSoC 4 please let me know.
The Analog Hardware Mux component has two modes Mux and Switch. The mode can be configured by the Component Configuration Tool dialogue.
If the component is configured as a 10-to-1 multiplexer in Mux mode, the component has 4 select lines to select one of 10 inputs. In this mode, the switch is flipped at the timing of the clock input regarding the output of the 4-bit Control Register.
If the component is configured as a 10-to-1 multiplexer in Switch mode, the component has 10 select lines which controls the switches between the inputs and the output individually. In this case, 10-bit Control Register is required to control the multiplexer. You must prepare two Control Register components because the maximum bit-width of a Control Register is eight. You can turn ON and OFF any switches in this mode.