SPRUJ17H March 2022 – October 2024 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
This reset pin is the warm reset request (active LOW) given externally from the pad..
By default, the input path to trigger a warm reset from external pad is disabled. To enable, the TOP_RCM.WARM_RESET_CONFIG.PAD_BYPASS bit should be written 3’b000.
The timing diagram shows the reset sequence during WARMRSTn pad assertion and related timing for the internal system reset.
The input pad signal should remain LOW for at least ‘TOP_RCM.WARM_RSTTIME3’ time to register an assertion of WARMRSTn. Similarly,the signal should remain HIGH for at least ‘TOP_RCM.WARM_RSTTIME2’ continuously to register a deassertion of WARMRSTn. The glitch filter logic on ‘Warm_Reset_in’ filters out any input pad signal which is LOW for less than ‘TOP_RCM.WARM_RSTTIME3’ time and HIGH for less than ‘TOP_RCM.WARM_RSTTIME2’ time. The internal system reset gets asserted at time TOP_RCM.WARM_RSTTIME3 and deasserted at ‘TOP_RCM.WARM_RSTTIME2’ time relative to external WARMRSTn pad
For more details on programmable values for WARM_RSTTIME1/2/3 Vs The Corresponding Delays, refer to Control Modules, MSS_RCM section.