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About functions of DVCC1/DVSS1、DVCC2/DVSS2.If NOT connecting DVCC2/DVSS2,Can MCU still Run?
They are internally connected but used for better current distribution and layouting. The required capacitance on VCC can be distributed amongst them or concentrated on one pin. And this information is in at least one datasheet (where I read it). Maybe you just didn't find it where you were looking.
It is common practice to just read the sectiosn of immediate interest. However, on MSP, there are many cross-connections between different sections, and not always (rather seldom) each information is provided everywhere.
To understand tiemrs, you'll need to know the clock system, for ADC, you might need the tiemes (and therefore the clock system), all three require knowledge of the CPU interrupt mechanisms etc. Same for the datasheet. Some info is here, some is there. And often enough at a place where you don't expect it (but wher eit makes sense if you thing about it afterwards). Remember, the ones writing the datasheet are people who know the relations (else they couldn't write it). And it's difficult to pretend you do not know them when designing the datasheet. :)
Indeed, it's best to heave at least read the whole stuff once. So you may remember seeing this information there, even if you didn't fully understand it at first glance. You may come back later when needed.
