Hi Support Team,
In the current design concept, M4FSS will be used for general-purpose (GP) or not used.
In Figure 5-477 of the TRM, it states Do Not Use SW_MAIN_POR_MMR as the process in this case,
but I do not understand the reason for this.
If it is not necessary to use it, it should not be described as Note:,
however, if it is used, what would be the effect?
Best Regards,
Kanae
Hello Kanae,
In Figure 5-477 of the TRM, it states Do Not Use SW_MAIN_POR_MMR as the process in this case,
but I do not understand the reason for this.
Sorry for the delayed reply.
Actually, there are two ways we can do POR on AM64X devices.
So, one possibility is the MCU_PORz pin and another one controlling the SW_MAIN_POR bits in the CTRLMMR_RST_CTRL or CTRLMMR_MCU_RST_CTRL register.
So, in GP mode or non-isolation applications, users can't do POR with the help of controlling SW_MAIN_POR bits in the MMR Registers.
Users can do POR with the help of an MCU_PORz pin only in GP mode.
Users can do POR with the help of SW_MAIN_POR bits in CTRL_MMR registers and MCU_PORz Pin in Isolation Mode.
Regards,
Anil.
