SPRAD21E May 2023 – February 2024 AM620-Q1 , AM623 , AM625 , AM625-Q1 , AM625SIP , AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62P , AM62P-Q1
PORz_OUT is the Main Domain POR (cold reset) status output, RESETSTATz is the Main Domain warm reset status output and MCU_RESETSTATz is the MCU Domain warm reset status output.
RESETSTATz can be used to reset on-board memories or peripherals with reset functionality (eMMC, OSPI, EPHY) or SD Card power switch. The PORz_OUT can also be used to latch the hardware strap configurations during power-up including latching the Ethernet PHY pin strap configurations.
Pulldown resistors are recommended for PORz_OUT and RESETSTATz outputs to assert the reset (hold the attached devices in reset) to the attached devices during power-up.
It is recommended to connect the reset status outputs to a test point for testing or future enhancements when not used. Optionally a pulldown can be provided and can be a DNI.