SPRUJB3C March 2024 – November 2025 AM67 , AM67A , TDA4AEN-Q1 , TDA4VEN-Q1
The SMS will issue this reset upon a security error.
When this reset is enabled in MAIN domain, it causes a MAIN domain warm reset.
This is a synchronous reset type (needs to complete reset isolation sequence).
This reset behavior is same as the RESETz_REQ reset signal (RESET_REQz HW Pin).
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.
This is a MAIN domain warm reset request. First, the reset isolation sequence is applied and then the reset is propagated.
All modules in MAIN domain are reset except for CTRLMMR register bits which are reset only on PORz.
IOs are not affected.
All processor cores are reset (A53SS, SMS, and R5FSS).
Reason for this reset is captured in CTRLMMR reset source status register WKUP_CTRL_MMR_CFG0_RST_SRC. After reset is de-asserted, device will boot-up. During device boot-up, R5FSS (secondary boot loader) will read the reset status and MCU ACTIVE MAGIC WORD registers and reconfigure the MCU domain/R5FSS processor accordingly.