i.MX 6 QP Select Input Register

[TaikiSugiura]

Hi, 

I design register settings for i.MX6QP.

Is it necessary to set Select Input Register only when one function is set to multiple Pads in Pad Mux Register?

Or is it always necessary to set Select Input Register even when one function is set to one Pad?

[igorpadykov]

Hi Taiki

>is it always necessary to set Select Input Register even when one function is set to one Pad?

this depends on particular pad/function so necessary to check Chapter 36  IOMUX Controller (IOMUXC)

i.MX 6DualPlus/6QuadPlus Applications Processor Reference Manual

as in example below, ALT1 requires it, ALT0 - not :

 

Best regards
igor