Hello,
There is no details about EN_SW0 (Pin No. - 8) input type, so I cannot decide if I can leave this pin open if not used.
After testing it looks like this pin is open drain? and cannot be left open if not used. Since the state of channel-0 is OR between EN_0 and EN_SW0, so I can ground this pin if not used?
For your post-silicon validation - Not only we see indeterminate channel-0 state if we keep EN_SW0 pin floating but also the I2C communication of while system freezes. I am not sure how they are interrelated but this is what I observe.
In order to avoid this problem I had to enable channel-0 (EN_0 bit) before I can communicate with rest of the devices over I2C. Of course in the next board iteration I will terminate the EN_SW0 appropriately.
Regards,
Nahit
