What is the function of the ALU of the microcontroller?
Answer: MCS-51 single-chip ALU is very powerful. It can not only perform logical AND, OR, XOR loop, complement, clear and other basic operations on 8-bit variables.
Basic operations such as addition, subtraction, multiplication, and division can also be performed.
What is the function of the ACC of the microcontroller?
A: The accumulator ACC in the microcontroller unit is an 8-bit accumulator.
From a functional point of view, it has nothing special compared to the general microcomputer accumulator, but the ACC carry flag CY is a one-bit accumulator for the bit operation of the Boolean processor.
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