SPRZ398K November 2012 – September 2024 DRA745 , DRA746 , DRA750 , DRA756
MMC1 IOs and PBIAS Must Be Powered-Up before Isolation
Medium
IO Isolation, as described in TRM section “Isolation Requirements”, may fail if the MMC1 IOs and PBIAS are not powered-up.
Power-up the MMC1 IOs and PBIAS before starting the Isolation Sequence. This can be done by setting the CTRL_CORE_CONTROL_PBIAS[27] SDCARD_BIAS_PWRDNZ and CTRL_CORE_CONTROL_PBIAS[26] SDCARD_IO_PWRDNZ bits to 1.
SR 2.0, 1.1, 1.0
TDA2x: 2.0, 1.1, 1.0
DRA75x, DRA74x: 2.0, 1.1, 1.0
AM572x: 2.0, 1.1