Hi,
I am using the Sensor Controller at my application. I am read this below at TRM 11.5. Do I need to write 0x00 or 0x01 to the AUX_WUC:AUXIOLATCH register or this done already by the Power Management?
If the sensor controller application is using I/Os and simultaneously power cycling the AUX power domain,
the I/O signals must be latched (static configuration). There are latches in AON that latch the signals
coming from AUX to the GPIO pins. The AUX_WUC:AUXIOLATCH register controls this latch. The reset
state of this register is that the latches are closed (in other words, not transparent). Before any I/Os can be
used, this latch must be opened by writing 0x1 to the AUX_WUC:AUXIOLATCH register. The latches must
be closed again before powering off the AUX domain. There are more constraints and reliability issues to
consider before powering off a domain; (for more details, see Section 17.5).
-kel
