ZHCSI09S June 2010 – August 2018 TPS65911
The NRESPWRON signal is used as the reset to the processor and is in the VDDIO domain. It is held low until the ACTIVE state is reached. For detailed timing, see Section 5.21.2.
The NRESPWRON2 signal is a second reset output. It follows the state of NRESPWRON but has an open-drain output with external pullup. The supply for the external pullup must not be activated before the TPS65911 device is in control of the output state (that is, not earlier than during first power-up sequence slot). In off mode, the NRESPWRON2 output has weak internal pulldown.