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How many General-Purpose Registers are present in the Atmega328?

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How many General-Purpose Registers are present in the Atmega328?

(a) 12

(b) 64

(c) 32

(d) 9

I have been asked this question in examination.

Origin of the question is Microcontroller Specifications in division AtMega Microcontroller Specifications of Arduino

1 Answer

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Best answer
The correct choice is (c) 32

Explanation: There are 32 General-Purpose Registers in the chip and they are all connected to the ALU (Arithmetic Logical Unit) directly which allow 2 registers to be accessed in one instruction in a clock cycle.

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