ZHCSEF7G December 2014 – February 2019 TPS659037
PRODUCTION DATA.
In this mode, at the end of the power-up sequence, the register bit DEV_CTRL.DEV_ON is automatically set to 1 and the TPS659037 device remains in its ACTIVE state until this bit is cleared by the host processor.
Figure 5-22 and Figure 5-23 show the AUTODEVON mode timing diagrams.
The DEV_ON bit can also be configured so that it is not auto-updated (set to 1) at the end of the power-up sequence. In this case, the TPS659037 device behaves similarly to the POWERWHOLD mode, except the host has control over it using the DEV_CTRL.DEV_ON register bit instead of the POWERHOLD pin. Therefore, to keep the TPS659037 device active, the host must set and keep this bit at 1.