SBC MC39907 Reset Status Registers

[ahmedsoubky]

Hi, 

A couple of questions about two SBC registers in the RM: 

What is the meaning of RSTb_ext and RSTb and the difference between them as they are always set to 1 whatever the reset reason is ( microcontroller or SBC ) ? 

Also, is it possible to know that an SPI reset request was the reason for an SBC reset ? 

Thanks in advance, 

Best Regards, 

Ahmed 

[petervlna]

Hi,

WD_answer register implements RSTb which indicated reset cause by WD.

Diag_FS1 - RSTb_ext Report an external reset cause by device external to SBC. For example cased by MCU.

Could you point me to SPI reset request in Datasheet?

Peter