What's the semantic content of the word "yo" in the speech of Jesse from Breaking Bad, and in which dialects is this construct found in the real world

Replace "Yo" with "Dude"

"C'mon, Dude!"

"I mean it, Dude!"

"Let me tell you something dude."

"That is messed up dude..."

"Maybe this isn't such a good idea dude..."

Yo is being used as a pronoun for another person in the conversation, or as the general idea of a person if talking to himself.

Other words that would fit, for example: "Man", "Girl", "Sir", "Officer", "Bossman" (if you're feeling street).

Examples of where this construction might be used in the real world, with [Yo] being placed next to the word that is replacing it:

"C'mon Officer [Yo], I don't deserve a ticket"

"We need to get to front if we want to see the show, man [Yo]."