I'm trying to use the "iMX 6Series Plarform SDK v1.1.0" for my demo board with iMX6DL processor.
There is a function void hdmi_tx_phydtb_pgm_iomux(void) from the file /board/common/board_hdmi.c.
This function configures mux mode to ALT6 for SD1_DATA0 pad and SD1_DATA1 pad ( // for hdmi_tx instance OPHYDTB/OPHYDTB port ??? ).
I have not found this mux mode for SD1_DATA pad from Reference Manual
MUX Mode Select Field.
Select 1 of 3 iomux modes to be used for pad: SD1_DAT0.
000 ALT0 Select signal SD1_DATA0.
011 ALT3 Select signal GPT_CAPTURE1.
101 ALT5 Select signal GPIO1_IO16.
What makes this setting ? And what is the OPHYDTB ? Thank you