SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The different internal reset sources are:
All of the warm reset sources have a corresponding enable bit in TOP_RCM.WARM_RESET_CONFIG register. Respective bits are configured for enabling the sources to trigger a warm reset.
The Internal System Reset and the External WARMRSTn pad assertion happen along with the assertion of Internal Reset Sources.
The external WARMRSTn pad deassertion is controlled by TOP_RCM.WARM_RSTTIME1 register. This is to enable sufficient reset assertion time for any external device relying on the reset signal. The internal system reset deassertion is relative to the deassertion of WARMRSTn pad and can be controlled by TOP_RCM.WARM_RSTTIME2.
The timing sequence below shows the overall sequence between assertion of Internal Reset Sources (Internal Reset Req) relative to Internal System Reset (Internal Reset to System) and WARMRSTn pad.