Please note that the data contained in the pinmuxing files is only valid in regard of pinmuxing! All other register settings are arbitrary and only contained because it's not possible to leave them away! Furthermore the file only mentions the pure hardware but not the Device Tree of the BSP! In addition please be aware of the fact that the file is only for the version PCL-069-1032311.A2 because other versions of the module might have slightly different muxings. You'll find that the pins have been grouped into three classifications according to their functionality. A short desciption had been attached to each group.