SPRUJB3C March 2024 – November 2025 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
This reset is issued when a MAIN domain processor (A53SS, SMS, or R5FSS) detects a catastrophic software error or a MAIN domain WDT timeout event occurs.
Errors in the MAIN domain cause the MAIN ESM module to trigger ESM_ERRORz.
This is routed as internal MAIN domain warm reset when enabled by the WKUP domain CTRLMMR reset control bit (MAIN_ESM_ERROR_RST_ENz).
This is an asynchronous reset type (takes effect immediately).
When MCU domain is configured to operate independently, MCU domain reset isolation sequence is completed before propagating the RESETz to main domain.
MCU IOs are not affected.
When MCU domain is not configured as independent then, this reset will also warm reset MCU domain.
All modules in MAIN domain are reset except for MAIN domain CTRLMMR bits which are reset only on PORz.
IOs are not affected.
The device will re-boot. During boot-up, the R5FSS (secondary boot loader) will poll the CTRLMMR reset registers and reconfigure the MCU domain/R5FSS processor accordingly.
If the device boot fails, and the MCU_ERRORn level is still LOW, then an external safety device should issue the MCU_PORz Reset to allow the device to recover from this error.