Answer the following questions briefly. What are the full names of the following

Question

Answer the following questions briefly. What are the full names of the following 8051 internal components: PSW: ___ SFR: ___ SP: ___ ACC: ___ DPTR: ___ Assume the content of A register is originally 00H, and R1 is 30H and the content of memory address 30H is FFH. What is the content of A after executing the following instructions. MOV A, #AA: ans: ___; MOV A, R0; ans: ___ MOV A, @R0; ans: ___ Please design an address decoder for address F0H. The output will be 1 if and only if the input is F0H. (note that you must specify which bit is LSB)

Explanation / Answer

1) Answer:

1)PSW:Program status word

2)SFR:Special Function Register

3)SP:Stack Pointer

4)ACC:Accumulator

5)PTR:Data Pointer

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