SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
A warm reset can be asserted by the device, by an external button (typically for development platform), or by any other chip connected to it (normally tied to PMIC companion NRESWARM output pin).
The device warm reset pad (resetn - device signal SYS_WARM_IN_RST) is used to trigger a warm reset on the device, which resets part of the device when it has already booted (for example, to recover from a software crash). When an internal device reset occurs, SYS_NRES_WARM_OUT output and device pad rstoutn go low and reset all the peripherals.
The device releases the SYS_NRES_WARM_OUT output signal after SYS_PWRON_RST is deasserted.