MSP430 Friends & Family,
Our customer is asking the following of the FR6820 BOR detect function:
From the TI datasheet, if RST pin voltage is lower than 1.66V and the duration is longer than 2usec, we believe it would trigger the BOR, correct?
-> This appears to be the case.
And if we capture the below pulse signal on the RST pin but VDD is normally 3.3V, could Firmware add a debounce time to filter this short pulse to avoid an MCU reset?
--> some FW control is indeed supported but perhaps not for this level of pulse/noise reduction
Or is just the BOR hardware reset and as long as BOR occurs, it would reset the MCU immediately while Firmware cannot control it?
--> Again while some FW control is indeed supported perhaps not to this level
And also from the TI datasheet, the MCU integrates the internal digital filter to suppress short pulses - so does firmware configure this filter parameter such as pulse duration? Or it is only a default configuration and not configurable? If it is default, what’s the default setting?
--> Need MSP team to comment further please as DS is not explicit on this
Thanks for any input you can provide!
Regards,
Chris (for customer)