SPRAD21E May 2023 – February 2024 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62P , AM62P-Q1
EXT_REFCLK1 pin is routed to clock muxes as one of the selectable input clock source to the Timer modules (DMTIMER/WDT), DMTIMER in Security Subsystem (SMS), MCAN and CPTS (Time Stamping Module). If an application requires a specific clock frequency to be fed to these modules using the EXT_REFCLK1 is an option (example: time synchronization or for clock quality reasons).