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Can you explain what is going on in this piece of code P2 -> DIR &= 0xF0 ; P2 -> REN = (BIT3BIT2 BIT1BITO) ;

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Can you explain what is going on in this piece of code

P2 -> DIR &= 0xF0 ; P2 -> REN = (BIT3BIT2 BIT1BITO) ; P2 -> OUT = (BIT3 | BIT2 BIT1BITO); P2 -> DIR &= 0xF0 ; P2 -> REN = (BIT3BIT2 BIT1BITO) ; P2 -> OUT = (BIT3 | BIT2 BIT1BITO)

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