Hi to everyone,
I have been reading the schematic for the 6437 development board and there is something about the PORn circuit that i don't understand.
On page 33, I can see that PORn imput is connected to SYS_RESETn that can be asserted either by U56 (1.8V comparator) or SW5. But I don't see the point for monitoring 3.3V or 1.2V with U57 and U58, since diode D10 blocks the signal between U57 and U56.
Can anybody help me on this please,
Thanks,
Nuba.